Synthesis of the South unit of cephalostatin. 7. Total syntheses of (+)- cephalostatin 7, (+)-cephalostatin 12, and (+)-ritterazine K
Transformation of alcohol 4 to α-azidoketone 6, a hexacyclic steroid beating the requisite functionality and spiroketal stereochemistry of the symchiral South portion of cephalostatin 7 (10) is described. Reaction of a 1:1 mixture of α-azidoketones 5 and
Jeong, Jae Uk,Guo, Chuangxing,Fuchs
p. 2071 - 2084
(2007/10/03)
Biomimetic total syntheses of (+)-cephalostatin 7, (+)-cephalostatin 12, and (+)-ritterazine K
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Jeong, Jae Uk,Sutton, Scott C.,Kim, Seongkon,Fuchs