作者:Ahmed Kamal、Papagari Venkat Reddy、Moku Balakrishna、Singaraboina Prabhakar
DOI:10.2174/157017811794697502
日期:2011.2.1
Novel synthesis of putaminoxin, stagonolide-F and aspinolide-A have been achieved by utilizing (S) and (R)- malic acid. The key feature of the synthetic strategy includes Horner-Wittig olefination, double bond reduction and Steglich esterification. Olefinic acid for putaminoxin and stagonolide-F was prepared from (S)-malic acid whereas olefinic acid for aspinolide-A was prepared from (R)-malic acid and olefinic alcohols for putaminoxin, stagonolide-F and aspinolide-A were prepared by using Browns asymmetric allylboration.
通过利用(S)和(R)-苹果酸,实现了普他米诺辛、芪内酯-F 和芪内酯-A 的新合成。合成策略的主要特点包括霍纳-维蒂希烯化、双键还原和斯特利希酯化。使用布朗不对称烯丙基硼化法制备了普他米诺辛和拮抗内酯-F 的烯烃酸,而使用(R)-苹果酸制备了阿斯匹灵-A 的烯烃酸,并制备了普他米诺辛、拮抗内酯-F 和阿斯匹灵-A 的烯烃醇。