Polymorphic crystal of 4′-{2-[ (1S, 2R)—2-...

Details Polymorphic crystal of 4′-{2-[ (1S, 2R)—2-... Polymorphic crystal of 4′-{2-[ (1S, 2R)—2-...

2007-10-12

2009-08-25

Sullivan, Daniel M (Department: 1621)

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

Organic compounds

Oxygen containing

C568S586000, C562S405000, C562S442000, C514S567000, C514S646000

Reexamination Certificate

active

07579507

ABSTRACT:
Crystals of a salt of 4′-{2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethylamino]ethoxy}-3-isopropyl-3′,5′-dimethylbiphenyl-4-carboxylic acid. The α type, β type and γ type crystals produced by treating hydrochloride of 4′-{2-[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethylamino]ethoxy}-3-isopropyl-3′,5′-dimethylbiphenyl-4-carboxylic acid with specified solvents, which can be discriminated by the characteristic diffraction peaks of powder X-ray diffractometry and the like.

REFERENCES:
patent: 7417169 (2008-08-01), Kobayashi et al.
patent: 2006/0128807 (2006-06-01), Kobayashi
patent: 2541894 (2005-05-01), None
patent: 2004 072016 (2004-08-01), None
patent: 2006 022237 (2006-03-01), None

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