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US5696276A Process for preparing 5,8-dihydroxynaphthoquinone derivatives, novel 5,8-dihydroxynaphthoquinone derivatives and their use as anticancer agent 失效
制备5,8-二羟基萘醌衍生物的方法,新的5,8-二羟基萘醌衍生物及其作为抗癌剂的用途

Process for preparing 5,8-dihydroxynaphthoquinone derivatives, novel
5,8-dihydroxynaphthoquinone derivatives and their use as anticancer
agent
摘要:
5,8-dihydroxynaphthoquinone derivatives represented by the following general formula (IA): ##STR1## in which R.sup.1 represents alkyl or alkenyl, R.sup.2a represents alkyl or a group --C(O)R wherein R represents alkyl, alkenyl, aryl, aralkyl or aralkenyl, which can be substituted or unsubstituted with one or more halogen(s), and R.sup.3 represents hydrogen or alkyl, provided that when R.sup.2a is a group --C(O)R and R.sup.3 is hydrogen, R.sup.1 is other than 3-methyl-2-butenyl; and when R.sup.2a represents methyl and R.sup.3 independently represents hydrogen or methyl, R.sup.1 is other than 3-methylbutyl. Processes for preparing 5,8-dihydroxynaphthoquinone derivatives are also provided.
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