118. The constitution of yohimbine and related alkaloids. Part VI. The synthesis of 1 : 2 : 3 : 4 : 6 : 7 : 12 : 12b-octahydro-2-ketoindolo-(2 : 3-a)pyridocoline and 1 : 2 : 3 : 4-tetrahydroindolo(2 : 3-a)pyridocoline
作者:L. H. Groves、G. A. Swan
DOI:10.1039/jr9520000650
日期:——
Syntheses of (RS)- and (S)-(−)-Nazlinin and (RS)- and (+)-6-Azacyclodeca[5,4-b]indol-1-amine
(RS)‐1‐(4‐Aminobutyl)‐1,2,3,4‐tetrahydro‐β‐carboline ((RS)‐1) was synthesized in two different ways. The preparation of (S)‐(−)‐1 was performed both by asymmetric reduction with ⩾ 95% ee and by synthesis from (S)‐(+)‐3. From this compound also (+)‐6‐azacyclodeca[5,4‐b]indol‐1‐amine ((+)‐2) was prepared with high enantioselectivity.