| abstract |
New compounds of formula: (in which R' is opt. branched 4C alkyl or 3-6C cycloalkyl, R2 and R3 are opt. branched 1-4C alkyl) their oximes and salts may be prepared by several methods including condensation of a phenothiazine deriv. of formula: (in which Y is O, anil or ketal) with a compound X-CH2-CH (CH3)-CH2-NR2R3 (in which X is halogen, sulphuric or sulphonic ester, carbonate, carbamate, monoalkylcarbamate or dialkylcarbamate). |