Stereoselective reactions. X. Total synthesis of optically pure antitumor lignan, burseran.
作者:KIYOSHI TOMIOKA、TSUNEO ISHIGURO、KENJI KOGA
DOI:10.1248/cpb.33.4333
日期:——
Optically pure trans- and cis-burseran (4, 10) were stereoselectively synthesized in an unequivocal manner. Comparison of their behaviors on gas chromatography indicated that naturally occurring antitumor lignan, burseran, is the trans-isomer.
以明确的方式立体选择性地合成了光学纯的反式和顺式-burseran (4, 10)。它们在气相色谱上的行为比较表明天然存在的抗肿瘤木酚素,burseran,是反式异构体。