Process For Preparing Pyrido[2,3-D]Pyrimidin-7-One And 3,4-Dihydropyrimido{4,5-D}Pyrimidin-2(1H)-One Derivatives
申请人:Callahan Francis James
公开号:US20080096905A1
公开(公告)日:2008-04-24
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)
wherein
G1 is CH
2
or NH: G2 is CH or nitrogen;
Rx is chloro, bromo, iodo, or O—S(O)
2
CF
3
;
R
g
is a C
1-10
alkyl; m is 0, or an integer having a value of 1, or 2;
R
3
is a C
1-10
alkyl, C
3-7
cycloalkyl, C
3-7
cycloalkyl C
1-10
alkyl, aryl, arylC
1-10
alkyl, heteroaryl, heteroarylC
1-10
alkyl, heterocyclic or a heterocyclylC
1-10
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)
2
CF
3
; and
Rg is a C
1-10
alkyl; with a olefin forming reagent in a suitable base to yield a compound of Formula (II), wherein m=0 and oxidizing the sulphur as necessary or desired.
本发明涉及一种制备2,4,8-三取代吡啶[2,3-d]嘧啶-7-酮药效团(式(II))的新方法,其中G1为CH2或NH;G2为CH或氮;Rx为氯、溴、碘或O—S(O)2CF3;Rg为C1-10烷基;m为0或1或2;R3为C1-10烷基、C3-7环烷基、C3-7环烷基C1-10烷基、芳基、芳基C1-10烷基、杂芳基、杂芳基C1-10烷基、杂环或杂环C1-10烷基基团,其中这些基团均可选择性地被取代。该方法包括将下式化合物与烯烃形成试剂在适当碱的作用下反应,得到式(II)的化合物,其中m=0,并根据需要或意愿氧化硫。其中式中Ry为氯、溴、碘或O—S(O)2CF3;Rg为C1-10烷基。