Abstract
This paper reports the total synthesis of optically pure maytansinol and maytansine. The physical constants and spectral data including R_f, m.p., specific rotation, HPLC, UV, CD, IR, NMR, and MS, of synthetic maytansinol and maytansine are identical with those of natural products in all respects. The preliminary biological test showed that synthetic maytansine possesses the same inhibitory activity in vitro against carcinoma cells as the natural product.
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