| Title of Invention | A PROCESS FOR PREPARING THE CRYSTALLINE DIPHENYLMETHYL 2-METHYL-2-TRIAZOLYLMETHYLPENAM-3-CARBOXYLATE |
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| Abstract | Stable crystals of diphenylmethyl 2-methyl-2-triazolyl-methylpenam-3-carboxylate, which cause substantially no decomposition or deterioration even after allowing to stand at room temperature for one year. The crystals are produced by concentrating a solution of diphenylmethyl 2-methyl-2-triazolylmethylpenam-3-carboxylate of formula (2), diluting the resulting concentrate with an acetic ester, and mixing the obtained dilution with hexane or a hexane/acetic ester mixture to crystallize diphenylmethyl 2-methyl-2-triazolylmethyl-penam-3-carboxylate wherein Ph is phenyl. |
| Full Text | N/A |
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in-pct-2002-00397-mum-abstract(12-01-2009).doc
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IN-PCT-2002-00397-MUM-ABSTRACT(12-1-2009).pdf
in-pct-2002-00397-mum-cancelled pages(12-01-2009).pdf
IN-PCT-2002-00397-MUM-CANCELLED PAGES(12-1-2009).pdf
IN-PCT-2002-00397-MUM-CLAIMS(12-1-2009).pdf
in-pct-2002-00397-mum-claims(granted)(12-01-2009).pdf
in-pct-2002-00397-mum-claims(granted)-(12-01-2009).doc
in-pct-2002-00397-mum-correspondence(12-01-2009).pdf
IN-PCT-2002-00397-MUM-CORRESPONDENCE(12-1-2009).pdf
IN-PCT-2002-00397-MUM-CORRESPONDENCE(26-11-2008).pdf
in-pct-2002-00397-mum-correspondence(ipo)-(27-05-2008).pdf
IN-PCT-2002-00397-MUM-DESCRIPTION(COMPLETE)-(12-1-2009).pdf
in-pct-2002-00397-mum-form 1(01-04-2002).pdf
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in-pct-2002-00397-mum-form 2(granted)-(12-01-2009).doc
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IN-PCT-2002-00397-MUM-OTHER DOCUMENT(12-1-2009).pdf
IN-PCT-2002-00397-MUM-PCT-ISA-210(12-1-2009).pdf
IN-PCT-2002-00397-MUM-PETITION UNDER RULE 137(12-1-2009).pdf
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IN-PCT-2002-00397-MUM-POWER OF AUTHORITY(12-1-2009).pdf
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| Patent Number | 231219 | |||||||||
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| Indian Patent Application Number | IN/PCT/2002/00397/MUM | |||||||||
| PG Journal Number | 13/2009 | |||||||||
| Publication Date | 27-Mar-2009 | |||||||||
| Grant Date | 03-Mar-2009 | |||||||||
| Date of Filing | 01-Apr-2002 | |||||||||
| Name of Patentee | OTSUKA CHEMICAL CO., LTD. | |||||||||
| Applicant Address | 2-27, Otedori 3-chome, Chuo-ku, Osaka-shi, Osaka 540-0021 | |||||||||
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| PCT International Classification Number | C07D 499/00 | |||||||||
| PCT International Application Number | PCT/JP01/06895 | |||||||||
| PCT International Filing date | 2001-08-10 | |||||||||
PCT Conventions:
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