Sialidase inhibitors related to GG167: Synthesis of analogues via an inverse demand hetero Diels Alder reaction
作者:Peter D. Howes、Paul W. Smith
DOI:10.1016/0040-4039(96)01408-6
日期:1996.9
strategy has been utilised for the synthesis of novel dihydropyrans as potential inhibitors of influenza virus sialidase. Cyclisation of 1-methoxy-2-acetamido ethene with 2-oxo-4-tButoxycarbonylamino but-3-(Z)-enoic acid t-butyl ester in the presence of tin (IV) chloride afforded a mixture of regio- and stereochemical isomers which were further elaborated to analogues of GG167.
反向需求杂Diels Alder策略已用于合成新型二氢吡喃,作为流感病毒唾液酸酶的潜在抑制剂。在氯化锡(IV)存在下,将1-甲氧基-2-乙酰胺基乙烯与2-氧代-4-叔丁氧羰基氨基丁-3-(Z)-烯酸叔丁酯环化,得到区域和立体化学异构体的混合物将其进一步修饰为GG167的类似物。