Quinolone derivatives having a quinolone structure: STR1 where Yo is O or S are disclosed, which are useful as cardiotonic agents. Typical examples of the quinolone derivatives include: 6,7-dimethoxy-4 (1H) quinolone (compound 6) and 5-hydroxy-6-methoxy-4(1H) quinolone (compound 1) as typical compounds of the formulae[I] and [I'], respectively, shown in the specification.
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(2008/06/13)
A SYNTHESIS OF AAPTAMINE
A five-step synthesis of the unusual marine alkaloid aaptamine (1) from veratrole is described (Scheme 1).
Kelly, T. Ross,Maguire, Martin P.
p. 3033 - 3036
(2007/10/02)
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