Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers
Introduction: We report the synthesis of novel 1,4-dihydropyridine derivatives containing biphenyl-2'-tetrazole moieties. We hypothesized that merging the key structural elements present in an AT1 receptor antagonist with key structural elements in 1,4-dihydropyridine calcium channel blockers w...
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2011-06-01
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| Series: | Advanced Pharmaceutical Bulletin |
| Subjects: | |
| Online Access: | http://apb.tbzmed.ac.ir/Portals/0/Archive/Vol1No1/1-asgari.pdf |
| _version_ | 1828219173972475904 |
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| author | Javid Shahbazi Mojarrad Zahra Zamani Hossein Nazemiyeh Saeed Ghasemi Davoud Asgari |
| author_facet | Javid Shahbazi Mojarrad Zahra Zamani Hossein Nazemiyeh Saeed Ghasemi Davoud Asgari |
| author_sort | Javid Shahbazi Mojarrad |
| collection | DOAJ |
| description | Introduction: We report the synthesis of novel 1,4-dihydropyridine derivatives containing biphenyl-2'-tetrazole moieties. We hypothesized that merging the key structural elements present in an AT1 receptor antagonist with key structural elements in 1,4-dihydropyridine calcium channel blockers would yield novel analogs with potential dual activity for both receptors. This strategy led to the design and synthesis of dialkyl 1,4-dihydro-2,6-dimethyl-4-[2-n-alkyl-1-[2΄-(1H-tetrazole-5-yl) biphenyl -4-yl] methyl] imidazole-4(or 5)-yl]- 3, 5-pyridinedicarboxylate analogs. Methods: These compounds were obtained by two methods starting from biphenyltetrazolyl-4-(or 5)-imidazolecarboxaldehyde intermediates employing in classical Hantzsch condensation reaction. In the first method, triphenylmethyl protecting group of 4- or 5-carboxaldehyde intermediate was first removed in acidic media and then classical Hantzsch reaction was employed in order to obtain the final products. In the second method, without further deprotection process, protected 4- or 5-carboxaldehyde intermediate directly was used in Hantzsch reaction. Results: The second method was more efficient than the first method since the deprotection and ring closure reaction occurs simultaneously in one pot. Conclusion: Eight novel dihydropridines analogs were synthesized using classic Hantzsch condensation reaction. Chemical structures of the compounds were characterized by 1H NMR, infrared and mass spectroscopy. |
| first_indexed | 2024-04-12T16:13:11Z |
| format | Article |
| id | doaj.art-e35d0584fb1144da95d3e61336f4d56f |
| institution | Directory Open Access Journal |
| issn | 2228-5881 2251-7308 |
| language | English |
| last_indexed | 2024-04-12T16:13:11Z |
| publishDate | 2011-06-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Advanced Pharmaceutical Bulletin |
| spelling | doaj.art-e35d0584fb1144da95d3e61336f4d56f2022-12-22T03:25:51ZengTabriz University of Medical SciencesAdvanced Pharmaceutical Bulletin2228-58812251-73082011-06-011119Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel BlockersJavid Shahbazi MojarradZahra ZamaniHossein NazemiyehSaeed GhasemiDavoud AsgariIntroduction: We report the synthesis of novel 1,4-dihydropyridine derivatives containing biphenyl-2'-tetrazole moieties. We hypothesized that merging the key structural elements present in an AT1 receptor antagonist with key structural elements in 1,4-dihydropyridine calcium channel blockers would yield novel analogs with potential dual activity for both receptors. This strategy led to the design and synthesis of dialkyl 1,4-dihydro-2,6-dimethyl-4-[2-n-alkyl-1-[2΄-(1H-tetrazole-5-yl) biphenyl -4-yl] methyl] imidazole-4(or 5)-yl]- 3, 5-pyridinedicarboxylate analogs. Methods: These compounds were obtained by two methods starting from biphenyltetrazolyl-4-(or 5)-imidazolecarboxaldehyde intermediates employing in classical Hantzsch condensation reaction. In the first method, triphenylmethyl protecting group of 4- or 5-carboxaldehyde intermediate was first removed in acidic media and then classical Hantzsch reaction was employed in order to obtain the final products. In the second method, without further deprotection process, protected 4- or 5-carboxaldehyde intermediate directly was used in Hantzsch reaction. Results: The second method was more efficient than the first method since the deprotection and ring closure reaction occurs simultaneously in one pot. Conclusion: Eight novel dihydropridines analogs were synthesized using classic Hantzsch condensation reaction. Chemical structures of the compounds were characterized by 1H NMR, infrared and mass spectroscopy.http://apb.tbzmed.ac.ir/Portals/0/Archive/Vol1No1/1-asgari.pdf14-DihydropyridineBiphenyl-2'-tetrazoleAngiotensin II BlockerCalcium Channel blocker |
| spellingShingle | Javid Shahbazi Mojarrad Zahra Zamani Hossein Nazemiyeh Saeed Ghasemi Davoud Asgari Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers Advanced Pharmaceutical Bulletin 1 4-Dihydropyridine Biphenyl-2'-tetrazole Angiotensin II Blocker Calcium Channel blocker |
| title | Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers |
| title_full | Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers |
| title_fullStr | Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers |
| title_full_unstemmed | Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers |
| title_short | Synthesis of Novel 1,4- Dihydropyridine Derivatives Bearing Biphenyl-2'-Tetrazole Substitution as Potential Dual Angiotensin II Receptors and Calcium Channel Blockers |
| title_sort | synthesis of novel 1 4 dihydropyridine derivatives bearing biphenyl 2 tetrazole substitution as potential dual angiotensin ii receptors and calcium channel blockers |
| topic | 1 4-Dihydropyridine Biphenyl-2'-tetrazole Angiotensin II Blocker Calcium Channel blocker |
| url | http://apb.tbzmed.ac.ir/Portals/0/Archive/Vol1No1/1-asgari.pdf |
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