| Title of Invention | 2-SUBSTITUTED METHYL PENAM DERIVATIVES |
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| Abstract | The present invention relates to novel 2a-methyl-2(5-substituted methyl penam derivatives of the formula (I), their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their solvates, their pharmaceutically acceptable salts, and pharmaceutical compositions containing them. CO2R<sub>1</sub> wherein R<sub>1</sub> represents hydrogen, carboxylic acid protecting group or a pharmaceutically acceptable salt; R<sub>2</sub> and R3 may be same or different and independently represent hydrogen, halogen, amino, protected amino; R represents substituted or unsubstituted alkyl, aryl, aralkyl, cycloalkyl or heterocyclalkyl The present invention also relates to a process for the preparation of novel 2α-methyl-2b—substituted methyl penam derivatives of the formula (I), their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their solvates, their pharmaceutically acceptable salts, and pharmaceutical compositions containing them. |
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1217-CHE-2006 EXAMINATION REPORT REPLY RECEIVED 21-09-2012.pdf
1217-CHE-2006 FER REPLY-AMENDED CLAIMS 21-09-2012.pdf
1217-CHE-2006 FORM-6 21-09-2012.pdf
1217-CHE-2006 AMENDED CLAIMS 07-08-2012.pdf
1217-CHE-2006 AMENDED CLAIMS 31-10-2011.pdf
1217-CHE-2006 AMENDED PAGES OF SPECIFICATION 07-08-2012.pdf
1217-CHE-2006 AMENDED PAGES OF SPECIFICATION 31-10-2011.pdf
1217-CHE-2006 FORM-1 31-10-2011.pdf
1217-CHE-2006 FORM-3 03-06-2010.pdf
1217-CHE-2006 FORM-3 31-10-2011.pdf
1217-CHE-2006 CORRESPONDENCE OTHERS 07-08-2012.pdf
1217-CHE-2006 EXAMINATION REPORT REPLY RECEIVED 31-10-2011.pdf
1217-CHE-2006 FORM-13 09-01-2008.pdf
1217-CHE-2006 FORM-3 27-03-2012.pdf
1217-che-2006-abstractimage.jpg
1217-che-2006-correspondence-others.pdf
1217-che-2006-description-provisional.pdf
| Patent Number | 255172 | |||||||||
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| Indian Patent Application Number | 1217/CHE/2006 | |||||||||
| PG Journal Number | 05/2013 | |||||||||
| Publication Date | 01-Feb-2013 | |||||||||
| Grant Date | 31-Jan-2013 | |||||||||
| Date of Filing | 12-Jul-2006 | |||||||||
| Name of Patentee | ORCHID CHEMICALS & PHARMACEUTICALS LTD | |||||||||
| Applicant Address | ORCHID TOWERS 313, VALLUVAR KOTTAM HIGH ROAD NUNGAMBAKKAM CHENNAI 600 034 TAMILNADU. | |||||||||
Inventors:
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| PCT International Classification Number | C07D 499/87 | |||||||||
| PCT International Application Number | N/A | |||||||||
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