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 = n;code = 110 char = u;code = 117 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = o;code = 111 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = o;code = 111 char = -;code = 45 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = -;code = 45 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 = r;code = 114 char = i;code = 105 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = a;code = 97 char = m;code = 109 char = i;code = 105 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = d;code = 100 char = -;code = 45 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = o;code = 111 char = s;code = 115 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = y;code = 121 char = l;code = 108 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = .;code = 46 result sql = Synthesis of nucleoside mono-, di-, and triphosphoramidates from solid-phase cyclosaligenyl phosphitylating reagents.
Synthesis of nucleoside mono-, di-, and triphosphoramidates from solid-phase cyclosaligenyl phosphitylating reagents.char = C;code = 67 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = y;code = 121 char = l;code = 108 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = l;code = 108 char = y;code = 121 char = s;code = 115 char = t;code = 116 char = y;code = 121 char = r;code = 114 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = 5;code = 53 char = -;code = 45 char = h;code = 104 char = y;code = 121 char = d;code = 100 char = r;code = 114 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = s;code = 115 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = y;code = 121 char = l;code = 108 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 = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = t;code = 116 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = u;code = 117 char = m;code = 109 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 = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = l;code = 108 char = y;code = 121 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = -;code = 45 char = b;code = 98 char = o;code = 111 char = u;code = 117 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 2;code = 50 char = -;code = 45 char = h;code = 104 char = y;code = 121 char = d;code = 100 char = r;code = 114 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = b;code = 98 char = e;code = 101 char = n;code = 110 char = z;code = 122 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 = 46 char = ;code = 32 char = S;code = 83 char = u;code = 117 char = b;code = 98 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = t;code = 116 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 = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = b;code = 98 char = o;code = 111 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = l;code = 108 char = y;code = 121 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = -;code = 45 char = b;code = 98 char = o;code = 111 char = u;code = 117 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 2;code = 50 char = -;code = 45 char = h;code = 104 char = y;code = 121 char = d;code = 100 char = r;code = 114 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = b;code = 98 char = e;code = 101 char = n;code = 110 char = z;code = 122 char = y;code = 121 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = c;code = 99 char = o;code = 111 char = h;code = 104 char = o;code = 111 char = l;code = 108 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 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 = i;code = 105 char = m;code = 109 char = m;code = 109 char = o;code = 111 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = z;code = 122 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = 2;code = 50 char = -;code = 45 char = h;code = 104 char = y;code = 121 char = d;code = 100 char = r;code = 114 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = b;code = 98 char = e;code = 101 char = n;code = 110 char = z;code = 122 char = y;code = 121 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = c;code = 99 char = o;code = 111 char = h;code = 104 char = o;code = 111 char = l;code = 108 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = p;code = 112 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = y;code = 121 char = i;code = 105 char = e;code = 101 char = l;code = 108 char = d;code = 100 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = d;code = 100 char = -;code = 45 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = o;code = 111 char = S;code = 83 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = y;code = 121 char = l;code = 108 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = o;code = 111 char = -;code = 45 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = -;code = 45 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 = r;code = 114 char = i;code = 105 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = ,;code = 44 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 = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = u;code = 117 char = n;code = 110 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = n;code = 110 char = u;code = 117 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = o;code = 111 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = i;code = 105 char = o;code = 111 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = e;code = 101 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 = o;code = 111 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 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 = c;code = 99 char = y;code = 121 char = a;code = 97 char = n;code = 110 char = o;code = 111 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = ;code = 32 char = g;code = 103 char = r;code = 114 char = o;code = 111 char = u;code = 117 char = p;code = 112 char = s;code = 115 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 = b;code = 98 char = a;code = 97 char = s;code = 115 char = i;code = 105 char = c;code = 99 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 = 44 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = y;code = 121 char = ,;code = 44 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = d;code = 100 char = ;code = 32 char = 5;code = 53 char = ';code = 39 char = -;code = 45 char = O;code = 79 char = -;code = 45 char = n;code = 110 char = u;code = 117 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = o;code = 111 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = o;code = 111 char = -;code = 45 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = -;code = 45 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 = r;code = 114 char = i;code = 105 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = a;code = 97 char = m;code = 109 char = i;code = 105 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = 5;code = 53 char = 2;code = 50 char = -;code = 45 char = 7;code = 55 char = 3;code = 51 char = %;code = 37 char = ;code = 32 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = a;code = 97 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = y;code = 121 char = i;code = 105 char = e;code = 101 char = l;code = 108 char = d;code = 100 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Chloromethyl polystyrene resin was reacted with 5-hydroxysalicylaldehyde in the presence of potassium carbonate to afford polymer-bound 2-hydroxybenzaldehyde. Subsequent reduction with borane solution produced polymer-bound 2-hydroxybenzyl alcohol. The reaction of immobilized 2-hydroxybenzyl alcohol with appropriate phosphitylating reagents yielded solid-phase cycloSaligenyl mono-, di-, and triphosphitylating reagents, which were reacted with unprotected nucleosides, followed by iodine oxidation, deprotection of cyanoethoxy groups, and the basic cleavage, respectively, to afford 5'-O-nucleoside mono-, di-, and triphosphoramidates in 52-73% overall yield.
Publication: Org. Lett. 2009 May 21 ;11(10)::2157-60. :doi: 10.1021/ol900320r.
Publication Date: 2009 May 21
Study Author(s): Ahmadibeni, Yousef;Tiwari, Rakesh K;Sun, Gongqin;Parang, Keykavous;
Institution: Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Kingston, Rhode Island 02881, USA.
Shortcut link to this study:
Chloromethyl polystyrene resin was reacted with 5-hydroxysalicylaldehyde in the presence of potassium carbonate to afford polymer-bound 2-hydroxybenzaldehyde. Subsequent reduction with borane solution produced polymer-bound 2-hydroxybenzyl alcohol. The reaction of immobilized 2-hydroxybenzyl alcohol with appropriate phosphitylating reagents yielded solid-phase cycloSaligenyl mono-, di-, and triphosphitylating reagents, which were reacted with unprotected nucleosides, followed by iodine oxidation, deprotection of cyanoethoxy groups, and the basic cleavage, respectively, to afford 5'-O-nucleoside mono-, di-, and triphosphoramidates in 52-73% overall yield.
PMID: 19364114