Method for producing cyclic diamine derivative

Details Method for producing cyclic diamine derivative Method for producing cyclic diamine derivative

2005-06-30

2009-08-18

Bernhardt, Emily (Department: 1624)

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

Organic compounds

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

C546S296000

Reexamination Certificate

active

07576203

ABSTRACT:
The present invention provides an industrially useful method for synthesizing a cyclic diamine derivative (4) or a salt thereof which serves as an ACAT inhibitor.A 2-hydroxyacetylaminopyridine compound represented by formula (1), and a method for producing a cyclic diamine derivative represented by formula (4) or a salt thereof from compound (1) through 1) Step A-1, 2) Steps B-1 and B-2, or 3) Steps B-1, B-3, and B-4.

REFERENCES:
patent: 6998486 (2006-02-01), Shibuya et al.
patent: 7176306 (2007-02-01), Shibuya et al.
patent: 2004/0038987 (2004-02-01), Shibuya et al.
patent: 2006/0035906 (2006-02-01), Shibuya et al.
patent: 2006/0293519 (2006-12-01), Shibuya et al.
patent: WO 91/04027 (1991-04-01), None
patent: 98 54153 (1998-12-01), None
U.S. Appl. No. 11/631,397, filed Dec. 29, 2006, Shibuya, et al.

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