R. Budriesi et al., STRUCTURE-ACTIVITY RELATIONSHIP STUDIES OF XANTHONE AND FLUORENONE-1,4-DIHYDROPYRIDINE-5-PHOSPHONATES, Arzneimittel-Forschung, 46(4), 1996, pp. 374-377
A series of xanthone and fluorenone-1,4-dihydropyridine derivatives be
aring a 5-phosphonate group were prepared. The compounds were evaluate
d for inotropic, chronotropic and calcium antagonistic properties. The
insertion of a phosphonate group is detrimental for inotropic and cal
cium antagonistic activity but improves the potency and selectivity fo
r chronotropism.