char = S;code = 83
char = y;code = 121
char = n;code = 110
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = -;code = 45
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = l;code = 108
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = );code = 41
char = ;code = 32
char = v;code = 118
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = g;code = 103
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = l;code = 108
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = G;code = 71
char = a;code = 97
char = r;code = 114
char = n;code = 110
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = d;code = 100
char = e;code = 101
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = .;code = 46
result sql = Synthesis of alpha- and beta-glycosyl asparagine ethylene isosteres (C-glycosyl asparagines) via sugar acetylenes and Garner aldehyde coupling.
Synthesis of alpha- and beta-glycosyl asparagine ethylene isosteres (C-glycosyl asparagines) via sugar acetylenes and Garner aldehyde coupling.
char = A;code = 65
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = a;code = 97
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = n;code = 110
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = C;code = 67
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = C;code = 67
char = H;code = 72
char = (;code = 40
char = N;code = 78
char = H;code = 72
char = 2;code = 50
char = );code = 41
char = C;code = 67
char = O;code = 79
char = 2;code = 50
char = H;code = 72
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = n;code = 110
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = g;code = 103
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = u;code = 117
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = t;code = 116
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = .;code = 46
char = ;code = 32
char = E;code = 69
char = s;code = 115
char = s;code = 115
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = N;code = 78
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = u;code = 117
char = p;code = 112
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = l;code = 108
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = r;code = 114
char = i;code = 105
char = d;code = 100
char = g;code = 103
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = F;code = 70
char = o;code = 111
char = l;code = 108
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = -;code = 45
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = -;code = 45
char = D;code = 68
char = -;code = 45
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = k;code = 107
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = C;code = 67
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = l;code = 108
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = N;code = 78
char = -;code = 45
char = B;code = 66
char = o;code = 111
char = c;code = 99
char = ;code = 32
char = D;code = 68
char = -;code = 45
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = t;code = 116
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = G;code = 71
char = a;code = 97
char = r;code = 114
char = n;code = 110
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = d;code = 100
char = e;code = 101
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = e;code = 101
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = s;code = 115
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = N;code = 78
char = -;code = 45
char = B;code = 66
char = o;code = 111
char = c;code = 99
char = -;code = 45
char = C;code = 67
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = -;code = 45
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = -;code = 45
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = v;code = 118
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = a;code = 97
char = v;code = 118
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = a;code = 97
char = z;code = 122
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = .;code = 46
char = ;code = 32
char = B;code = 66
char = y;code = 121
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = ,;code = 44
char = ;code = 32
char = 1;code = 49
char = 2;code = 50
char = ;code = 32
char = C;code = 67
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = c;code = 99
char = o;code = 111
char = s;code = 115
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = x;code = 120
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = i;code = 105
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = -;code = 45
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = -;code = 45
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = o;code = 111
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = l;code = 108
char = u;code = 117
char = c;code = 99
char = o;code = 111
char = ,;code = 44
char = ;code = 32
char = g;code = 103
char = a;code = 97
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = n;code = 110
char = n;code = 110
char = o;code = 111
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = 2;code = 50
char = -;code = 45
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = d;code = 100
char = o;code = 111
char = -;code = 45
char = 2;code = 50
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = u;code = 117
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of alpha- or beta-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-alpha-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of alpha- and beta-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.

Publication: J. Org. Chem. 2002 Jun 28 ;67(13)::4475-86.
Publication Date: 2002 Jun 28
Study Author(s): Dondoni, Alessandro;Mariotti, Giandomenico;Marra, Alberto;
Institution: Dipartimento di Chimica, Laboratorio di Chimica Organica, Università di Ferrara, Via Borsari 46, 44100 Ferrara, Italy. [email protected]
Shortcut link to this study:
A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of alpha- or beta-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-alpha-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of alpha- and beta-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.
PMID: 12076144

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