Crystals of 5-[2-amino-4-(2-furyl)...

Details Crystals of 5-[2-amino-4-(2-furyl)... Crystals of 5-[2-amino-4-(2-furyl)...

2008-07-08

2008-07-08

Rao, Deepak (Department: 1624)

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

active

11378315

ABSTRACT:
Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one having a diffraction peak at a diffraction angle (2θ±0.2°) of 12.8°, 18.1° and/or 23.5° in a powder X-ray diffraction are excellent in stability against light, therefore are suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.

REFERENCES:
patent: 2005/0004149 (2005-01-01), Harada et al.
patent: 1439175 (2004-07-01), None
patent: WO-03/035639 (2003-05-01), None
Fischer et al., J. Org. Chem., vol. 52, pp. 564-569, (1987).
Selvamurugan et al., Tetrahedron, vol. 57, pp. 6065-6069, (2001).

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