How to obtain two optical antipodes of an octahydro-2H-pyrido [1,2-a] pyrazine starting from a single chiral synthon.
作者:Leandro Baiocchi、Giuseppe Picconi
DOI:10.1016/s0957-4166(00)80040-3
日期:1991.1
The synthesis of a (+)-(R,S)-2-aryl-4-methyl-3-oxo, octahydro-2H-pyrido [1,2-a]pyrazine and of its optical antipode (-)-(S,R)-2-aryl-4-methyl-3-oxo, octahydro-2H-pyrido[1,2-a]pyrazine, with a single synthetic sequence, and by making use of the natural ethyl lactate methansulfonate as the only chiral synthon, is described.