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