of the Δ2-oxazolin-5-one system toward nucleophilic reaction by introducing an allyloxycarbonyl group into the N9 position and subsequent ring opening with the 2-aminobutane (C1–N5 moiety), and iii) base-induced construction of the (E)-1-azabicyclo[3.1.0]hexane system from the 5-mesyloxymethyl-pyrrolidine as key steps.
标题合成通过设有i)所述2-甲
硫基Δ的缩合来实现1
吡咯啉(C8-C13基团)与Δ 2 -oxazolin -5-酮(C6,C7,N16和C17部分),ⅱ)在Δ的活化2 -oxazolin -5-酮朝向亲核反应系统通过引入烯丙氧羰基团引入到N9位置和随后的环开口与2-
氨基
丁烷(C1-N5部分),和iii)的碱诱导的结构( E)-1-由5-甲氧基氧甲基-
吡咯烷形成的氮杂
双环[3.1.0]己烷体系为关键步骤。