发明授权
US4228164A Condensed purine derivatives useful for improving peripheral circulation 失效
用于改善外周循环的富集嘌呤衍生物

Condensed purine derivatives useful for improving peripheral circulation
摘要:
A compound of the formula ##STR1## wherein R is hydroxy, alkoxy or acyloxyQ is sulfur or a .dbd.N--R.sup.1 group, wherein R.sup.1 ishydrogen, C.sub.1-5 alkyl or aralkyl or C.sub.2-4 acyl, or a pharmaceutically acceptable acid addition salt thereof.
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