Synthesis of optically pure pyrroloquinolones via Pictet–Spengler and Winterfeldt reactions
作者:Weiqin Jiang、Zhihua Sui、Xin Chen
DOI:10.1016/s0040-4039(02)02147-0
日期:2002.12
Diastereomers of substituted 2,3,4,9-tetrahydro-1H-β-carbolines were synthesized via asymmetric Pictet–Spengler reaction of the chiral tryptamine derived from R-1-naphthalen-1-yl-ethylamine with 67% of d.e. The S,R-β-carboline can be converted to the R,R form by treating with TFA. Optically pure pyrroloquinolones were obtained from Winterfeldt oxidation of the β-carbolines without epimerization.
通过R -1萘-1-基乙胺与67%的de The的手性色胺的不对称Pictet-Spengler反应合成了取代的2,3,4,9-四氢-1 H -β-咔啉的非对映异构体S,R -β-咔啉可通过用TFA处理转化为R,R形式。光学纯的吡咯并喹诺酮是由β-咔啉的Winterfeldt氧化得到的,没有差向异构化。