Mycalamide B, a potent antitumour agent, was synthesized from cheap, readily available starting materials: ethyl lactate, ethyl isobutyrate, 4-chlorobutanal, and 4-chlorobutanoyl chloride. The trioxabicyclo[4.4.0]decane ring system was created by reaction of a methoxymethyl ether with a silyloxyoxirane induced by phosphorus pentoxide.
Mycalamide B是一种有效的抗肿瘤剂,采用廉价且易得的起始材料合成:
乙酸乙酯、
异丁酸乙酯、
4-氯丁醛和
4-氯丁酰氯。通过与五氧化
磷诱导的
硅氧亚环烷反应,合成了三氧双环[4.4.0]
癸烷环系统。