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US5013853A Chroman derivatives 失效
色原衍生物

Chroman derivatives
摘要:
A compound of the formula: ##STR1## where in x-y is --CO--CH.sub.2 --, --COCR.sup.10-, --CHOHCHR.sup.8-, --CH.dbd.CR.sup.8 -- or ##STR2## and R.sup.9 is various, R.sup.1 and R.sup.8 are alkyl, R.sub.2 is H or alkyl and R.sup.1 and R.sup.2 are alkylene, are disclosed as useful as intermediates for cardiovascular agents.
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