DERIVATIVES OF 1-ALILERGOTALCALOIDS, PROCEDURE FOR ITS PREPARATION AND ITS USE FOR THE PROPHYLAXIS AND THERAPY OF MIGRAÑA.

摘要

Alilergotalcaloid derivatives of the general formula (I) in which R1 represents an ethyl, n-propyl, i-propyl or allyl group, R3 represents hydrogen or a -OCH3 group, and R4 represents hydrogen, a methyl, ethyl group, n -propyl, i-propyl or -CH2OH and the bond between carbon atoms 9 and 10 is either a single bond or a double bond simultaneously omitting the radical R3.