Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1988-12-12
1991-01-08
Shah, Mukund J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
546278, C07D40306, A61K 3144
Patent
active
049836170
ABSTRACT:
The invention concerns a new stable crystal form of anhydrous, crystalline 1,4-dihydro-2-(imidazol-1-ylmethyl)-6-methyl-4-(3-nitrophenyl)pyridine)-3, 5-dicarboxylic acid 3-ethyl 5-methyl diester hydrochloride, "having a melting point greater than about 215.degree. C., an infra red spectrum (nujolmull) having sharp peaks at 3195 cm.sup.-1, 3100 cm.sup.-1, 2735 cm.sup.-1 and 2625 cm.sup.-1 and an x-ray powder diffraction pattern with specific peaks occurring at 2.theta.=12.3.degree. and 44.5.degree.."
Bradley Gerald
Carr Geoffrey P. R.
Opalko Albert
Yarwood Richard J.
Datlow P.
John Wyeth and Brothers Limited
Seifert Arthur G.
Shah Mukund J.
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