New enantioselective approach to α-allokainoids by Michael addition to chiral 4-substituted 2,3-didehydroprolinate
作者:Jesús Ezquerra、Ana Escribano、Almudena Rubio、Modesto Jesús Remuiñán、Juan JoséVaquero
DOI:10.1016/0040-4039(95)01165-e
日期:1995.8
(-) and (+) alpha-Allokainoids hydrochlorides 3 and 4 were obtained by hydrolysis of the corresponding Michael adducts resulting from the addition of diethyl malonate to chiral N-urethane protected ethyl 4-benzyl-2,3-didehydroprolinates 9 and 13 respectively.
(-)和(+) α-取代的水合氯醛盐酸盐3和4分别通过水解相应的迈克尔加成物而得到,这些加成物来源于二乙酸精氨酸酯分别加成到手性N-脲保护的乙基4-苄基-2,3-去氢脯氨酸酯9和13上。