6,7,8,9-Tetrahydro-4H-naphtho-[2,3-b]pyran-2-carboxylic acids

Details 6,7,8,9-Tetrahydro-4H-naphtho-[2,3-b]pyran-2-carboxylic acids 6,7,8,9-Tetrahydro-4H-naphtho-[2,3-b]pyran-2-carboxylic acids

1979-08-10

1981-05-26

Chan, Nicky

Drug, bio-affecting and body treating compositions

Nonspecific immunoeffector, per se ; or nonspecific...

Lipid or oil

2603452, C07D31192, A61K 3135

Patent

active

042698545

ABSTRACT:
There are described compounds of formula I, ##STR1## in which R is hydrogen, hydroxy or alkoxy C 1 to 6, and X is hydroxy, carbonyl oxygen or alkoxy C 1 to 6, and pharmaceutically acceptable derivatives thereof.
There are also described methods for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing them.

REFERENCES:
patent: 4159273 (1979-06-01), Brown et al.
Kano et al., J.C.S. Chem. Comm., 1979, pp. 414-415.
Nakai et al., Tetrahedron Letters, 1979, pp. 531-534.

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