Patent ID: 6277982
Filing Date: 2001-08-21
Classification: C07H

Abstract:
A process for preparing a compound of the formula I,A--X--(CR.sub.1 R.sub.2).sub.n --O--SO.sub.2 --O.sup.- Y.sup.+ (I)wherein:A is a carbohydrate, oligonucleotide, nucleotide, or nucleoside;X is a O, S, or N;R.sub.1 and R.sub.2 are independently H, alkyl, aryl, O-alkyl, O-aryl, carboxylic acid, amide, ester, halogen, trifluoromethyl, or amine;n is 2-10; and,Y is H, Li, Na, K, Cs or an amine;comprising the steps of:treating a compound of formula II,A--X--H (II)with a compound of formula III: ##STR22##to give said compound of formula I.