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US4977276A Heteroarotinoids as anticancer agents 失效
异抗坏血酸作为抗癌剂

Heteroarotinoids as anticancer agents
摘要:
Novel heteroarotinoid compositions characterized by the formulae: ##STR1## where: X is S or O; OAc is the acetate group ##STR2## and R is --H, --OH, --OCH.sub.3, or --OC.sub.2 H.sub.5 and includes ##STR3## for formulae (1) and (2). Such compositions exhibit activity as anticancer agents.
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