Salt of fused heterocyclic derivative and crystal thereof

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专利权人:

Kazumichi Jo;Hideki Takeuchi

发明人:

Kazumichi Jo,Hideki Takeuchi

申请号：

US13577832

公开号：

US09169266B2

申请日:

2011.02.09

申请国别(地区):

US

年份:

2015

代理人:

摘要：

An objective of the present invention is to improve the solubility of 3-[2-fluoro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenyl]-2,4-dioxo-1,2,3,4-tetrahydrothieno[3,4-d]pyrimidine-5-carboxylic acid.The present invention provides 3-[2-fluoro-5-(2,3-difluoro-6-methoxybenzyl-oxy)-4-methoxyphenyl]-2,4-dioxo-1,2,3,4-tetrahydrothieno[3,4-d]pyrimidine-5-carboxylic acid choline salt has excellent solubility and storage stability.

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