SULPHONES (SULPHOXIDE) PHENOXY ALKANOLAMINES

摘要

Propanolamine derivatives of the formula: wherein R2 is CH3SO or CH3SO2; R3 is hydrogen, methyl or methoxy; or R2 and R3 are together -S(O)m(CH2)4-when S is attached at R2 or -(CH2)nS(O)m- when S is attached at R3(where m=1 or 2 and n=3 or 4); R4 is hydrogen or alkyl C1-4; Z is -(CH2)2- or and their non-toxic salts. Processes for the preparation and pharmaceutical compositions thereof. The compounds exhibit both beta -adrenoreceptor antagonist activity and vasodilator activity and are indicated for use in the treatment of hypertension.