Method for purifying a fused pyrrolocarbazole derivative
US8884014B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Dec 13, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates a method for purifying a fused pyrrolocarbazole compound known as 11-isobutyl-2-methyl-8-(2-pyrimidinylamino)-2,5,6,11,12,13-hexahydro-4Hindazolo[5,4-a]pyrrolo[3,4-c]carbazol-4-one using an acid complex thereof. The present invention also relates to a crystalline form of the acid complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.