申请人:Chen Weichun
公开号:US20100197705A1
公开(公告)日:2010-08-05
There is described a new polymorphic form of 4-(7-Hydroxy-2-isopropyl-4-oxo-4H-quinazolin-3-yl)-benzonitrile having structural formula I(B) and to a method of preparing it.
There is further a process or method for the manufacture of a pharmaceutically active quinazolinone compounds of the formula I
wherein the symbols have the meanings given in the description, said process comprising reacting a compound of the formula II,
wherein R
4
* is R
1
*—C(═O)— wherein R
1
* is independently selected from the group of meanings of R
1
as defined for a compound of the formula I so that R
1
* and R
1
are identical to or different from each other, or R
4
* is especially H, and R
1
and R
3
, R
5
and R
6
are as defined for a compound of the formula I, or a salt thereof,
under simultaneous or sequential condensation and cyclisation conditions with an aniline compound of the formula III,
wherein R
2
and m are as defined for a compound of the formula I. Further reactions and related embodiments are also claimed and disclosed.
本文描述了一种4-(7-羟基-2-异丙基-4-氧代-4H-喹唑啉-3-基)-苯甲腈的新多晶型式I(B),以及其制备方法。此外,本文还提供了一种制备具有式I中所给符号所表示含义的药物活性喹唑啉酮化合物的过程或方法,该过程包括将式II的化合物与式III的苯胺化合物在同时或顺序缩合和环化条件下反应,其中R4*为R1*—C(═O)—,其中R1*独立地选自于式I化合物所定义的R1的含义组,使得R1*和R1相同或不同,或R4*特别为H,而R1和R3、R5和R6如式I中所定义,或其盐。本文还声明和揭示了进一步的反应和相关实施方式。