Pharmaceutically useful flavonoic compounds containing at least one substituent on the benzopyranone ring moiety
US5116954A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1989 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/65522
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Substituted six-membered benzo-fused heterocycles of the formula (I) ##STR1## in which: X=0, NH, S.fwdarw.(O).sub.n (n=0 or 2); PA1 R.sub.1 is phenyl, phenyl substituted by methoxy, hydroxy, chlorine, fluorine, diethylaminoethoxy, phenoxy, 2-methyl-4-thiazolyl, 2-amino-4-thiazolyl, phenyl, amino, nitro, terbutyl, carboxymethyl, acetamido, dimethyltriazenyl, benzoyl, hexyl, undecyl, trifluoromethyl, carbamoyl; or R.sub.1 is trifluoromethyl, pyridyl-2,pyridyl-4; PA1 R.sub.2 is H, methoxy, hydroxy; or PA1 R.sub.1 and R.sub.2 are --CH.dbd.CH--CH.dbd.CH--; PA1 R.sub.3 and R.sub.4 are methoxy, hydroxy, fluorine or form a fused benzene ring; PA1 CR.sub.5 R.sub.6 R.sub.7 is carboxymethyl, --CH.sub.2 --PO.sub.3 H,--CH.sub.2 --PO(oET).sub.2, 4-methylpiperazinyl, aminomethyl,3-4-5-trimethoxyphenylaminomethyl, acetyl, bromoacetyl, hydroxyethyl, acetoxyethyl, mercaptomethyl, acetylthiomethyl, methoxy-carbopnylthiomethyl, --CH--CONH.sub.2, ##STR2## substituted thiazolyl, subsituted furanone, imidazo(1,2-a)pyridinyl, indolizinyl, or R.sub.4 and R.sub.5 form a fused benzene ring on the positions 5 and 6, 6 and 8 or 7 and 8 are disclosed. These compounds possess anticancer activity in particular an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.