Diaryl-substituted heterocyclic compounds, their preparation and

Details Diaryl-substituted heterocyclic compounds, their preparation and Diaryl-substituted heterocyclic compounds, their preparation and

1991-06-18

1993-03-23

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

544146, 544141, 544152, 546205, 546206, 546209, 546213, 546214, 548235, 548236, 548202, 548203, 548247, 548379, 548517, 548518, 548561, 548562, 5483771, 549 60, 5483435, 549 75, 549472, 549491, 549497, 549498, 549499, 549501, 549502, C07D41302, C07D21106, C07D26334, C07D40502, C07D33312, C07D30702

Patent

active

051965321

ABSTRACT:
Compounds of formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, A is an ethylene or methylene radical which is unsubstituted or substituted by methyl, hydroxyl or oxo,

REFERENCES:
patent: 4118574 (1978-10-01), Beck et al.
patent: 4760174 (1988-07-01), Frickel et al.
patent: 4876349 (1989-10-01), Klaus et al.
patent: 4994489 (1991-02-01), Wuest et al.
CA 111:23742t Retinobenzoic Acid. 3. Structure-Activity . . . -Carboxylic Acids. Kagechika et al., p. 640, 1989.
CA 114:42807w Preparation of . . . Cosmetics. Woest et al. p. 748, 1995.

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