Efficient Preparation of Alkaloids Polycarpine and Polycarpaurines A and C

Autor: Ziwen Wang, Guo Pengbin, Lanya Zhang, Shuang Yan, Weihui Zhuang, Zeliang Hu, Qingmin Wang, Yan Xiong
Rok vydání: 2015
Předmět:
Zdroj: Journal of Heterocyclic Chemistry. 54:121-124
ISSN: 0022-152X
DOI: 10.1002/jhet.2549
Popis: An efficient method for the preparation of alkaloids polycarpine and polycarpaurines A and C via microwave-assisted three-step one-pot reaction as the key step has been developed. This is the first report about the synthesis of polycarpaurines A and C. Starting from commercially available p-methoxybenzaldehyde, polycarpine and polycarpaurine A were obtained over seven steps with 40 and 24 % overall yield, respectively. Polycarpine could convert to polycarpaurine C in 72% yield in the presence of NaHSO3. The structure of polycarpine and polycarpaurines A and C was confirmed by 1H NMR, 13C NMR, and HRMS.
Databáze: OpenAIRE