The synthesis of aryl substituted analogues of phenoxyacetyl-L-cysteinyl-D-valine and phenylacetyl-L-cysteinyl-D-valine
作者:Jack E. Baldwin、Andrew J. Pratt、Mark G. Moloney
DOI:10.1016/s0040-4020(01)81664-1
日期:——
synthesised In high yield, and found to be converted to the corresponding penicillins (5a) –(5d) by Isopenicillin N Synthetase (IPNS). Of these, the m-substituted analogue (4c) was converted most efficiently. The synthesis of a potential photoaffinity label for IPNS which Incorporates this molecular framework, 2-[3-(3-trifluoromethyl-3H-diazirin-3-yl)phenoxy]acetyl-S-carbomethoxysulfenyl-L-cysteinyl-D-valine
乙酰基芳基二肽(4a)–(4b)的合成产率很高,发现可以通过异青霉素N合成酶(IPNS)转化为相应的青霉素(5a)–(5d)。其中,m-取代的类似物(4c)最有效地被转化。包含该分子框架的IPNS的潜在光亲和标记的合成,[2- [3-(3-三氟甲基-3H-二氮杂-3-基)苯氧基]乙酰基-S-羰甲氧基亚磺酰基-L-半胱氨酰-D-缬氨酸(21 ),进行了说明。