A series of N-tetrazolylpyridinecarboxamides was prepared and evaluated for antiallergic activity by the passive cutaneous anaphylaxis (PCA) assay. From the structure-activity relationships (SAR) of this class of compounds, it was revealed that the N-tetrazolylcarbamoyl group as an acidic functionality is required to be at the 2-position of the pyridine nucleus and that the phenyl group as a subtituent is not necessarily required for activity. 6-Methyl-N-(1H-tetrazol-5-yl)-2-pyridinecarboxamide (36) showed good oral activity and low toxicity.
2-Pyridinecarboxamide derivatives compositions containing same and
申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04404214A1
公开(公告)日:1983-09-13
A 2-pyridinecarboxamide derivative of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, lower alkoxy, halogen, lower alkyl-thio or nitro and is in the 3rd-, 4th- or 5th-position of the pyridyl group, and R.sup.2 is hydrogen, lower alkyl, lower alkoxy, phenoxy, phenyl-lower alkyl, phenyl-lower alkenyl, or halogen. Said 2-pyridinecarboxamide derivative (I) or a pharmaceutically acceptable salt thereof is useful as an anti-allergic agent.
2-Pyridinecarboxamide derivative, process for preparing same and pharmaceutical composition, useful as an anti-allergic agent
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0053789A1
公开(公告)日:1982-06-16
A 2-pyridinecarboxamide derivative of the formula:
wherein R' is hydrogen, lower alkyl, lower alkoxy, halogen, lower alkyl-thio or nitro and is in the 3rd-, 4th- or 5th- position of the pyridyl group, and R2 is hydrogen, lower alkyl, lower alkoxy, phenoxy, phenyl-lower alkyl, phenyl-lower alkenyl, or halogen. Said 2-pyridinecarboxamide derivative (I) or a pharmaceutically acceptable salt thereof is useful as an anti-allergic agent.