Chemical compounds

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

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549372, A61K 31495, C07D40306

Patent

active

051168421

ABSTRACT:
Compounds are disclosed of formula (I) ##STR1## wherein R.sub.1 represents --COR.sub.4, --CO.sub.2 R.sub.4, --COCO.sub.2 R.sub.4 or --CONR.sub.4 R.sub.5 (where R.sub.4 and R.sub.5 may be the same or different and represent a hydrogen atom or a C.sub.1-3 alkyl group);

REFERENCES:
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patent: 3347860 (1967-10-01), Irikura et al.
patent: 4705781 (1987-11-01), Boast
patent: 4923863 (1990-05-01), Scopes et al.
patent: 4943578 (1990-07-01), Naylor et al.
Br. J. Pharmacol., 1989, 96, 986-992.
Naylor et al., Chem. Abst. 112-198421k (1990).
Terada et al., Chem. Abst 113-78419q (1990).

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