PROCESS FOR THE PRODUCTION OF 4-AMINO-2,5-BISHETEROCYCLYLQUINAZOLINES
申请人:Pfizer Limited
公开号:EP1412331A1
公开(公告)日:2004-04-28
US7026479B2
申请人:——
公开号:US7026479B2
公开(公告)日:2006-04-11
[EN] PROCESS FOR THE PRODUCTION OF QUINAZOLINES<br/>[FR] PROCEDE DE PRODUCTION DE 4-AMINO-2,5-BISHETEROCYCLYLQUINAZOLINES
申请人:PFIZER LTD
公开号:WO2003011829A1
公开(公告)日:2003-02-13
The invention provides a process for the production of a compound of formula (A), or a pharmaceutically acceptable salt or solvate thereof, wherein R1 represents C¿1-4? alkoxy optionally substituted by one or more fluorine atoms; R?2¿ represents H or C¿1-6? alkoxy optionally substituted by one or more fluorine atoms; R?3¿ represents a 5- or 6-membered heterocyclic ring which is optionally substituted; R4 is a 4-, 5-, 6- or 7-membered heterocyclic ring which is optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted; the process comprising condensing a compound of formula (B), wherein R1 to R3 are as defined above; with a compound of formula (C), wherein R?5 and R6¿ taken together with the N atom to which they are attached represent a 4-, 5-, 6-, or 7-membered N-containing heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted.
Process for the production of quinazolines
申请人:Pfizer Inc.
公开号:US20030100753A1
公开(公告)日:2003-05-29
The invention provides a process for the production of a compound of formula (A), or a pharmaceutically acceptable salt or solvate thereof,
1
wherein
R
1
represents C
1-4
alkoxy optionally substituted by one or more fluorine atoms;
R
2
represents H or C
1-6
alkoxy optionally substituted by one or more fluorine atoms;
R
3
represents a 5- or 6-membered heterocyclic ring which is optionally substituted;
R
4
is a 4-, 5-, 6- or 7-membered heterocyclic ring which is optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted;
the process comprising condensing a compound of formula (B),
2
wherein
R
1
to R
3
are as defined above;
with a compound of formula (C),
3
wherein
R
5
and R
6
taken together with the N atom to which they are attached represent a 4-, 5-, 6-, or 7-membered N-containing heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted.