TOTAL SYNTHESIS OF (+)-LYCORICIDINE AND ITS 2-EPIMER FROM D-GLUCOSE
TOTAL SYNTHESIS OF (+)-LYCORICIDINE AND ITS 2-EPIMER FROM D-GLUCOSE
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DOI:
10.1021/jo00068a045
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发表时间:
1993-07-30
影响因子:
3.6
通讯作者:
OGAWA, S
中科院分区:
文献类型:
--
作者:
CHIDA, N;OHTSUKA, M;OGAWA, S
Stereoselective total synthesis of antimitotic alkaloid (+)-lycoricidine (1) and its 2-epimer (30) was accomplished starting from D-glucose. The key steps in this synthesis are (i) a catalytic version of the Ferrier rearrangement for the preparation of the optically active substituted cyclohexenone (the C-ring of lycoricidine) and (ii) a Pd-catalyzed intramolecular Heck-typE, reaction for construction of the phenanthridone skeleton. A preliminary biological assay revealed that the stereochemistry at the 2-position of lycoricidine plays an important role in its cytotoxic activity.