TOWARDS THE SYNTHESIS OF CALYCULIN - A SYNTHETIC INTERMEDIATE CORRESPONDING TO THE C(26)-C(37) FRAGMENT

被引:39
作者
VACCARO, HA [1 ]
LEVY, DE [1 ]
SAWABE, A [1 ]
JAETSCH, T [1 ]
MASAMUNE, S [1 ]
机构
[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139
关键词
D O I
10.1016/0040-4039(92)88107-G
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthetic intermediate 2 corresponding to the C(26)-C(37) fragment of calyculin A (1) has been synthesized. Key transformations include the efficient one-pot construction of the oxazole system embedded in 1 without epimerization-alpha [C(30)] to the ring, and the in situ formation of the dimethylamine by opening an N-methyllactam with Meerwein's reagent and trapping the resultant methylamine with formaldehyde.
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页码:1937 / 1940
页数:4
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