Phenethanolamines

Abstract From the Canadian patent

The tertiary amines of the formula I, wherein n represents a whole number of 1 to 5;, x1 represents phenyl or phenyl monodi- or tri-substituted by R1, R2, and R3; x2 represents hydrogen, lower-alkyl, phenyl or phenyl monodi- or tri-, -substituted by R1, R2 and R3; Y represents hydrogen, lower-alkyl, hydroxymethyl carboxy or lower-, -alkoxycarbonyl;, Z represents a group of the formula (Z), R1, R2 and R3 represent hydrogen, halogen hydroxy, benzyloxy, lower-alkyl, lower-alkoxy hydroxymethyl, amino, acylamino, lower-alkoxybenzylamino nitro, carbamoyl, trifluoromethyl or, lower-alkylsulphonylmethyl; R4 and R5 represent lower alkanoyl, carboxy cyano, hydroxy-lower-alkyl, acyloxy or a group …