Discrimination of spermidine amino functions by a new protecting group strategy; application to the synthesis of guanidinylated polyamines, including hirudonine
作者:Andrew Mitchinson、Bernard T. Golding、Roger J. Griffin、Mary C. O'Sullivan
DOI:10.1039/c39940002613
日期:——
Agmatine and hirudonine, guanidine derivatives of putrescine and spermidine, respectively, are synthesised by the application of a new protecting group strategy for polyamines, which uses N-nitroguanidinyl as a precursor of guanidine functions and selectively blocks spermidine at N-1 and N-8 with trifluoroacetyl and at N-4 by 4-azidobenzyloxycarbonyl.
从尸胺和亚精胺分别合成的阿基美汀和水蛭素是通过采用一种新的聚胺保护基团策略实现的,该策略使用N-硝基氨基脲作为氨基功能的前体,并选择性地在N-1和N-8位用三氟乙酰基保护亚精胺,而在N-4位用4-叠氮苯甲氧羰基进行保护。