| abstract |
PROCEDURE FOR PREPARING DIHYDROPYRIDINE DERIVATIVES. IT CONSISTS OF REACTING A COMPOUND OF FORMULA (II) WITH A COMPOUND OF FORMULA (III), IN TOLUENE OR BENZENE, BETWEEN 0 AND THE REFLUX TEMPERATURE OF THE SOLVENT AND DURING 3 HOURS TO 2 DAYS, TO OBTAIN A COMPOUND (I OF FORMULA ). BEING: A, A VINYLENE GROUP OR AN ETHYLENE GROUP; B, A SINGLE -CH-O LINK; R1 AND R2, C 1 TO 10 ALKYL AND OTHERS; R3 AND R4, LOWER ALKYL; R5 AND R6, H, NITRO, AMINO AND OTHERS; R7 AND R8, H, HA, CYANE AND OTHERS; X, HAL; W, CH2XCHOH-; Y M Y N, FROM 0 TO 5. IT IS USED TO TREAT ANGINA PECTORIS AND MYOCARDIAL INFARCTION. |