作者:Katja Schultz、Manfred Hesse
DOI:10.1016/0040-4020(96)00872-1
日期:1996.11
asymmetric synthesis of the spermidine alkaloid (+)-isocyclocelabenzine (1a) is reported using (3S)-3-amino-3-phenylpropanoic acid as the chiral building block. The 1,2,3,4-tetrahydro-isoquinolin-1-one fragment 9 was synthesized by a modified Bischler-Napieralski reaction. The resulting C(13)-epimers were separated by semi-preparative HPLC. The relative configuration of the naturally occurring alkaloid was
据报道,使用(3S)-3-氨基-3-苯基丙酸作为手性结构单元,亚精胺生物碱(+)-异环celabenzine(1a)的不对称合成。通过改良的Bischler-Napieralski反应合成了1,2,3,4-四氢-异喹啉-1-酮片段9。通过半制备HPLC分离得到的C(13)-顶基。天然生物碱的相对构型是通过X射线晶体结构分析确定的,这使我们能够确定两个手性中心的天然(+)- 1a的绝对构型分别为(9 S)和(13 S)。