作者:Wei Berts、Kristina Luthmana
DOI:10.1016/s0040-4020(99)00865-0
日期:1999.11
mono- and difluorinated Phe-Gly methyl ester derivatives has been synthesized using facile methods. Diastereomeric allylic alcohol derivatives were used as key intermediates, cis- And trans-aziridine derivatives were synthesized in high yields from the diastereomeric alcohols using Mitsunobu conditions. The aziridines were treated with diethylaminosulfur trifluoride (DAST) at room temperature, which
使用简便的方法合成了Boc保护的烯丙基单和二氟化的Phe-Gly甲基酯衍生物的完整系列。非对映体烯丙醇衍生物用作关键中间体,顺式-和反式-氮丙啶衍生物在使用Mitsunobu条件下以高收率由非对映体醇合成。氮丙啶在室温下用二乙基氨基三氟化硫(DAST)处理,这导致立体选择性开环,产生了单氟化衍生物。使用DAST由γ-酮酸酯衍生物合成二氟代等位异构体。还合成了相应系列的饱和氟化衍生物。