β crystalline form of perindopril tert-butylamine salt

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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Details

C548S452000

Reexamination Certificate

active

11052489

ABSTRACT:
A β crystalline form of the compound of formula (I):characterized by its powder X-ray diffraction data.Medicinal products containing the same which are useful as inhibitors of angiotensin I converting enzyme.

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patent: 2771010 (1999-05-01), None
Brittain “polymorphism in pharmaceutical solids” marcel Dekker, p. 1,2, 178-179, 185, 219 and 236 (1999).
US Pharmacopia #23, national formulary #18, p. 1843-1844 (1995).
A. Maureen Rouhi, Chemical & Engineering News, Feb. 24, 2003, pp. 32-35.
Brittain “Polymorphism in Pharmaceutical Solids” Marcel Dekker, p. 332, 334, 335, 338-341, (1999).

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