(-)-Isopodophyllotoxin has been synthesised by a route involving an asymmetric Diels Alder reaction between (5R)-menthyloxy-2(5H)-furanone and an arylisobenzofuran. Raney nickel reduction of the major adduct affords 10-menthyloxyisopicropodophyllin which is converted into (-)-isopodophyllotoxin.
(-)-Isopodophyllotoxin 的合成过程中涉及了一条路线,其中包括 (5R)-薄荷烷氧基-
2(5H)-呋喃酮与芳基
异苯并呋喃之间的一种不对称 Diels-Alder 反应。主要的加成物经雷尼
镍催化还原后,得到10-薄荷烷氧基异卡波托罗
吡喃,该化合物随后被转化为 (-)-异podophyllotoxin。