Tricyclic mono-chromone-2-carboxylic acids

Details Tricyclic mono-chromone-2-carboxylic acids Tricyclic mono-chromone-2-carboxylic acids

1978-01-16

1979-06-26

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

542441, 424283, C07D31122, A61K 3135

Patent

active

041592735

ABSTRACT:
There are described compounds of formula I, ##STR1## in which R.sub.3 represents hydrogen, or alkyl C 1 to 6, R.sub.5 represents hydrogen, hydroxy, alkoxy C 1 to 6, alkanoyloxy C 2 to 6, alkenyloxy C 2 to 6, nitro, -NR.sub.1 R.sub.2, halogen, alkyl C 1 to 6, hydroxy-alkyl C 1 to 6, or hydroxy-alkoxy C 1 to 6,

REFERENCES:
patent: 3291811 (1966-12-01), Wragg
patent: 3484445 (1969-12-01), Lee et al.
patent: 3629290 (1971-12-01), Cairns et al.
patent: 3860617 (1975-01-01), Cairns et al.

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