Synthesis of vinca alkaloids and related compounds part 94. Epimerization of compounds with aspidospermane and<i>D</i>-secoaspidospermane skeleton
作者:György Kalaus、Lajos Szabó、János Éles、Csaba Szántay、Imre Juhász、IstvÁn Greiner、János Brlik、Mária Kajtár-Peredy
DOI:10.1002/jhet.5570370205
日期:2000.3
The individual epimerization steps of vincadifformine (1), deethylvincadifformine isomers (2,3), their synthetic intermediates (4–13) as well as that of simpler compounds with D-secoaspidospermane skeleton (15–17) were studied a) in protic medium (boiling deuteroacetic acidic) and b) under reductive (with sodium borodeuteride in boiling acetic acid, or with sodium borohydride in boiling deuteroacetic
研究了长春花蕾碱(1),去乙基长春花碱异构体(2,3),其合成中间体(4–13)以及具有D -secoaspidospermane骨架的较简单化合物的个别差向异构化步骤(15–17)a)在质子培养基中(在沸腾的氘代乙酸中)和(b)在还原条件下(在沸腾的乙酸中用硼氘化钠或在沸腾的氘代乙酸中用硼氢化钠)。