The present invention is a method of protecting a sulfonic acid functional group in an organic molecule as a substituted or unsubstituted neopentyl sulfonate ester. The method allows the conversion of R--SO.sub.3 --H to R'--SO.sub.3 --H, wherein R and R' are different organic radicals. Also disclosed is a method of increasing the bioavailability of drugs with a sulfonic acid functional group by protecting the sulfonic acid functional group as a substituted neopentyl sulfonate ester which has a masked heteroatom nucleophile. The masked nucleophile can be liberated in vivo, resulting in removal of the neopentyl protecting group and regeneration of the parent drug.
本发明是一种保护有机分子中
磺酸官能团的方法,采用取代或未取代的新戊基
磺酸酯。该方法允许将R-SO.sub.3 -H转化为R'-SO.sub.3 -H,其中R和R'是不同的有机基团。本发明还公开了一种通过将
磺酸官能团保护为具有掩蔽杂原子亲核试剂的取代新戊基
磺酸酯来增加药物
生物利用度的方法。在体内可以释放掩蔽的亲核试剂,从而去除新戊基保护基团并再生原始药物。