Invention Grant
US07479558B2 Process for preparing pyrido[2,3-d]pyrimidin-7-one and 3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one derivatives
失效
制备吡啶并[2,3-d]嘧啶-7-酮和3,4-二氢嘧啶并[4,5-d]嘧啶-2（1H） - 酮衍生物的方法
![Process for preparing pyrido[2,3-d]pyrimidin-7-one and 3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one derivatives](/docs/US/2009-01-20/US07479558B2/abs.jpg.600x600.jpg)
- Patent Title: Process for preparing pyrido[2,3-d]pyrimidin-7-one and 3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one derivatives
- Patent Title (中): 制备吡啶并[2,3-d]嘧啶-7-酮和3,4-二氢嘧啶并[4,5-d]嘧啶-2（1H） - 酮衍生物的方法
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Application No.: US11388375Application Date: 2006-03-24
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Publication No.: US07479558B2Publication Date: 2009-01-20
- Inventor: James F. Callahan , Jeffrey C. Boehm , Zehong Wan , Hongxing Yan , Xichen Lin
- Applicant: James F. Callahan , Jeffrey C. Boehm , Zehong Wan , Hongxing Yan , Xichen Lin
- Applicant Address: GB Greenford, Middlesex
- Assignee: Glaxo Group Limited
- Current Assignee: Glaxo Group Limited
- Current Assignee Address: GB Greenford, Middlesex
- Agent Dara L. Dinner; Stephen Venetiner; Charles M. Kinzig
- Main IPC: C07D487/04
- IPC: C07D487/04 ; C07D239/30 ; C07D413/04 ; C07D471/04
![Process for preparing pyrido[2,3-d]pyrimidin-7-one and 3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one derivatives](/abs-image/US/2009/01/20/US07479558B2/abs.jpg.150x150.jpg)
Abstract:
The present invention is directed to a novel method of preparing of 2,4,8-trisubstituted pyrido[2,3-d]pyrimidin-7-one pharmacophores of Formula (II) or (IIa) wherein G1 is CH2 or NH: G2 is CH or nitrogen; Rx is chloro, bromo, iodo, or O—S(O)2CF3; Rg is a C1-10alkyl; m is 0, or an integer having a value of 1, or 2; R3 is a C1-10 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl C1-10 alkyl, aryl, arylC1-10 alkyl, heteroaryl, heteroarylC1-10 alkyl, heterocyclic or a heterocyclylC1-10 alkyl moiety, and wherein each of these moieties may be optionally substituted. which comprises reacting a compound of the formula: wherein Ry is chloro, bromo, iodo, O—S(O)2CF3; and Rg is a C1-10 alkyl; with a olefin forming reagent in a suitable base to yield a compound of Formula (II), or (IIa) wherein m=0 and oxidizing the sulphur as necessary or desired.
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