| US 7,601,836 B2 | ||
| Pyrido[2,3-D]pyrimidine inhibitors of phosphodiesterase (PDE) 7 | ||
| William J. Pitts, Newtown, Pa. (US); and Joseph Barbosa, Lambertville, N.J. (US) | ||
| Assigned to Bristol-Myers Squibb Company, Princeton, N.J. (US) | ||
| Filed on Nov. 17, 2005, as Appl. No. 11/281,246. | ||
| Application 11/281246 is a division of application No. 10/173322, filed on Jun. 17, 2002, granted, now 7,022,849. | ||
| Prior Publication US 2006/0116516 A1, Jun. 01, 2006 | ||
| Int. Cl. C07D 471/00 (2006.01) | ||
| U.S. Cl. 544—279 [548/190] | 1 Claim |
| 1. A compound selected from the following:
(i) 2-[[4-[[[4-(Aminosulfonyl)phenyl]methyl]amino]pyrido[2,3-d]pyrimidin-2-yl]amino]-4-methyl-5-thiazolecarboxylic acid, ethyl
ester; and
4-Methyl-2-[[4-[[[4-(methylsulfonyl)phenyl]methyl]amino]pyrido[2,3-d]pyrimidin-2-yl]amino]-5-thiazolecarboxylic acid, ethyl
ester; or
(ii) an enantiomer, diastereomer, tautomer or pharmaceutically acceptable salt of (i).
|