WO2007054965A3 - Process for preparation of tetrazoles from aromatic cyano derivatives - Google Patents
Process for preparation of tetrazoles from aromatic cyano derivatives Download PDFInfo
- Publication number
- WO2007054965A3 WO2007054965A3 PCT/IN2006/000346 IN2006000346W WO2007054965A3 WO 2007054965 A3 WO2007054965 A3 WO 2007054965A3 IN 2006000346 W IN2006000346 W IN 2006000346W WO 2007054965 A3 WO2007054965 A3 WO 2007054965A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tetrazoles
- preparation
- cyano derivatives
- aromatic cyano
- formula
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D257/00—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
- C07D257/02—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D257/04—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention relates to process for preparation of tetrazoles of formula (I) from aromatic cyano derivatives of formula (II) comprising of treating the cyano compound of formula (II) with trialkyltin halide and metal azide in presence of base.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1177/MUM/2005 | 2005-09-23 | ||
IN1177MU2005 | 2005-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007054965A2 WO2007054965A2 (en) | 2007-05-18 |
WO2007054965A3 true WO2007054965A3 (en) | 2007-11-01 |
Family
ID=38023679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2006/000346 WO2007054965A2 (en) | 2005-09-23 | 2006-09-08 | Process for preparation of tetrazoles from aromatic cyano derivatives |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2007054965A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8865912B2 (en) | 2010-10-06 | 2014-10-21 | Glaxosmithkline Llc | Benzimidazole derivatives as PI3 kinase inhibitors |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8258312B2 (en) | 2007-06-27 | 2012-09-04 | Mylan Laboratories Ltd | Process for preparing pure valsartan |
WO2009125416A2 (en) | 2008-04-07 | 2009-10-15 | Hetero Research Foundation | Process for preparation of valsartan intermediate |
US8236843B2 (en) | 2008-09-02 | 2012-08-07 | Elder Pharmaceuticals Ltd. | Anti inflammatory compounds |
US8623928B2 (en) | 2009-11-12 | 2014-01-07 | National Research Council Of Canada | Polymers of intrinsic microporosity containing tetrazole groups |
US11655220B2 (en) | 2020-10-22 | 2023-05-23 | Hetero Labs Limited | Process for the preparation of angiotensin II receptor blockers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003089417A1 (en) * | 2002-04-15 | 2003-10-30 | Dr. Reddy's Laboratories Limited | Novel crystalline forms of (s)-n-(1-carboxy-2-methyl-prop-1-yl) -n-pentanoyl-n- [2’-(1h-tetrazol-5-yl-)- biphenyl-4-yl methyl] amine (valsartan) |
WO2005051929A1 (en) * | 2003-11-28 | 2005-06-09 | Ranbaxy Laboratories Limited | Conversion of aromatic nitriles into tetrazoles |
-
2006
- 2006-09-08 WO PCT/IN2006/000346 patent/WO2007054965A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003089417A1 (en) * | 2002-04-15 | 2003-10-30 | Dr. Reddy's Laboratories Limited | Novel crystalline forms of (s)-n-(1-carboxy-2-methyl-prop-1-yl) -n-pentanoyl-n- [2’-(1h-tetrazol-5-yl-)- biphenyl-4-yl methyl] amine (valsartan) |
WO2005051929A1 (en) * | 2003-11-28 | 2005-06-09 | Ranbaxy Laboratories Limited | Conversion of aromatic nitriles into tetrazoles |
Non-Patent Citations (2)
Title |
---|
ELLINGBOE JOHN W ET AL: "Metabolites of the Angiotensin II Antagonist Tasosartan: The Importance of a Second Acidic Group", JOURNAL OF MEDICINAL CHEMISTRY, AMERICAN CHEMICAL SOCIETY. WASHINGTON, US, vol. 41, no. 22, 1998, pages 4251 - 4260, XP002389948, ISSN: 0022-2623 * |
LE BOURDONNEC B ET AL: "Comparison of 3D structures and AT1 binding properties of pyrazolidine-3,5-diones and tetrahydropyridazine-3,6-diones with parent antihypertensive drug irbesartan", JOURNAL OF MEDICINAL CHEMISTRY 10 OCT 2002 UNITED STATES, vol. 45, no. 21, 10 October 2002 (2002-10-10), pages 4794 - 4798, XP002440584, ISSN: 0022-2623 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8865912B2 (en) | 2010-10-06 | 2014-10-21 | Glaxosmithkline Llc | Benzimidazole derivatives as PI3 kinase inhibitors |
US9156797B2 (en) | 2010-10-06 | 2015-10-13 | Glaxosmithkline Llc | Benzimidazole derivatives as PI3 kinase inhibitors |
Also Published As
Publication number | Publication date |
---|---|
WO2007054965A2 (en) | 2007-05-18 |
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