Thiopyrano-benzopyrans, compositions and method of use thereof

Details Thiopyrano-benzopyrans, compositions and method of use thereof Thiopyrano-benzopyrans, compositions and method of use thereof

1979-07-18

1980-10-14

Jiles, Henry R.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Parasitic organism or component thereof or substance...

424275, 549 27, 548252, 548253, A61K 3128, C07D49704

Patent

active

042281733

ABSTRACT:
There are described compounds of formula I, ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --COCH.dbd.CE--O--, and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, hydroxy, alkyl, halogen, alkenyl, alkoxy, or --NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2, which are the same or different, are each hydrogen or alkyl, and

REFERENCES:
patent: 3804857 (1974-04-01), Cairns et al.
patent: 3952013 (1976-04-01), Hazard et al.

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