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公开(公告)号:US08063214B2
公开(公告)日:2011-11-22
申请号:US11577948
申请日:2005-10-26
申请人: Eswaraiah Sajja , Venkata Naga Kali Vara Prasada Raju Vetukuri , Srinivas Reddy Ningam , Ravindra Vedantham , Rajyalakshmi Bodepudi
发明人: Eswaraiah Sajja , Venkata Naga Kali Vara Prasada Raju Vetukuri , Srinivas Reddy Ningam , Ravindra Vedantham , Rajyalakshmi Bodepudi
IPC分类号: C07D471/00 , C07D493/00
CPC分类号: C07D471/14
摘要: A process for preparing crystalline Form A of tadalafil (I), comprising crystallization from a solution of tadalafil in a solvent comprising a C3-C7 ester, a ketone, dimethylformamide, dimethylsulfoxide, ethanol, acetonitrile, a chlorinated hydrocarbon, t-butanol, N,N-dimethylacetamide, dioxane, N-methyl pyrrolidone, or a mixture of any two or more thereof.
摘要翻译: 一种制备他达拉非(I)结晶形式A的方法,包括由他达拉非溶液在包含C3-C7酯,酮,二甲基甲酰胺,二甲基亚砜,乙醇,乙腈,氯化烃,叔丁醇,N ,N-二甲基乙酰胺,二恶烷,N-甲基吡咯烷酮,或其任意两种以上的混合物。
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公开(公告)号:US20090131667A1
公开(公告)日:2009-05-21
申请号:US11577948
申请日:2005-10-26
申请人: Eswaraiah Sajja , Venkata Naga Kali Vara Prasada Raju Vetukuri , Srinivas Reddy Ningam , Ravindra Vedantham , Rajyalakshmi Bodepudi
发明人: Eswaraiah Sajja , Venkata Naga Kali Vara Prasada Raju Vetukuri , Srinivas Reddy Ningam , Ravindra Vedantham , Rajyalakshmi Bodepudi
IPC分类号: C07D405/14
CPC分类号: C07D471/14
摘要: Polymorphic forms of tadalafil, and processes for their preparation.
摘要翻译: 他达拉非的多形态及其制备方法。
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