Disclosed are small molecule inhibitors of the formula (I): and the pharmaceutical compositions thereof and processes of making the same. The compounds are useful in treating various diseases and conditions involving chymase.
A carbamoyl-substituted nitrileoxide was generated upon treatment of easily available 2-methyl-4-nitro-3-isoxazolin-5(2H)-one with THF (not dried); the reaction proceeded efficiently even in the absence of any special reagents and reaction conditions. The nitrileoxide caused 1,3-dipolarcycloaddition with common aliphatic nitriles or electron-rich aromatic nitriles to afford 3-functionalized 1,2
A nitrile oxide containing a carbamoyl group is readily generated upon the treatment of 2-methyl-4-nitro-3-isoxazolin-5(2H)-one with water under mild reaction conditions, even in the absence of special reagents. The obtained nitrile oxide undergoes cycloaddition with dipolarophiles, alkynes and alkenes, to afford the corresponding isoxazol(in)es, which are useful intermediates in the synthesis of polyfunctionalized
synthesizing different functionalized isoxazoles is provided. Carbamoylnitrile oxide generated from nitroisoxazolone underwent inverse electron-demand 1,3-dipolarcycloaddition with 1,3-dicarbonyl compounds in the presence of magnesium acetate that formed magnesium enolate in situ. Although electron-deficient trifluoroacetoacetate did not undergo this cycloaddition under the same conditions, conversion
Disclosed are small molecule inhibitors of the formula (I): and the pharmaceutical compositions thereof and processes of making the same. The compounds are useful in treating various diseases and conditions involving chymase.