A Convenient Synthesis of Aryl-Substituted N-Carbamoyl/N-Thiocarbamoyl Narcotine and Related Compounds
作者:Shefali Aggarwal、Narendra N. Ghosh、Ritu Aneja、Harish Joshi、Ramesh Chandra
DOI:10.1002/1522-2675(200208)85:8<2458::aid-hlca2458>3.0.co;2-l
日期:2002.8
nornarcotine and 5-bromonornarcotine, synthesized from noscapine, with suitable aromatic isocyanates or isothiocyanates provides a general method for the synthesis of aryl-substituted N-carbamoyl or N-thiocarbamoylnarcotine and related compounds. Similarly, 15a has been prepared via the reduction of the lactone ring moiety of noscapine. Also, an improved procedure, which utilizes narcotine N-oxide⋅HCl
由去甲烟碱合成的去甲可丁和5-溴去甲可丁与合适的芳族异氰酸酯或异硫氰酸酯的反应提供了合成芳基取代的N-氨基甲酰基或N-硫代氨基甲酰基那可丁和相关化合物的通用方法。类似地,通过还原诺斯卡品的内酯环部分制备了 15a。此外,还描述了一种改进的程序,该程序利用那可汀 N-氧化物·HCl 生成去甲可汀。