Farmitalia Carlo Erba S.p.a.

Guiliana Arcari

Sergio Mantegani

Germano Bosisio

Anna M Caravaggi

Compounds and process for making same are disclosed, the compounds having the formula (I): ##STR1## wherein R.sub.1 represents methyl, phenyl, piperidino, 1-pyrrolidinyl, morpholino or 4-methyl-1-piperazinyl, alkyl or alkoxy having from 1 to 4 carbon atoms, amino, substituted amino of the formula NHR' (wherein R' is alkyl having from 1 to 4 carbon atoms, cycloalkyl, a benzyl, or phenyl) or substituted amino of the formula NR' R'' (wherein R' and R'' both represent alkyl having from 1 to 4 carbon atoms);

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Milan, Italy

Guiliana Arcari