Regiocontrolled synthesis of the macrocyclic polyamine alkaloid (±)-lunarine, a time-dependent inhibitor of trypanothione reductase
作者:Chris J. Hamilton、Alan H. Fairlamb、Ian M. Eggleston
DOI:10.1039/b110149h
日期:2002.4.9
A regiocontrolled synthesis of the macrocyclic polyamine alkaloid (±)-lunarine is described. The key steps involve the preparation of the differentially functionalised cis-3-oxo-8-bromo-9b-cyano-1,2,3,4,4a,9b-hexahydrobenzofuranyl tricyclic scaffold 14 which, following further elaboration, is coupled to the selectively protected acrylamidospermidine5via a Heck coupling reaction to give the pre-cyclised
大环的区域控制合成 多胺 生物碱描述了(±)-月桂氨酸。关键步骤涉及制备差异官能化的顺式-3-氧代-8-溴-9b-氰基-1,2,3,4,4a,9b-六氢苯并呋喃基三环支架14,该支架在进一步加工后与环烷基偶联。通过Heck偶联反应选择性保护丙烯酰胺基嘧啶5 ,以得到预环化的月桂氨酸衍生物23。