Abstract Alkylation of phenols IIa-IIc with ω-(N, N-dialkylamino) alkyl chlorides IIIa-IIId in an aqueous and/or a two-phase (toluene and aqueous potassium hydroxide) medium, and reactions of phenols IId-IIf with isopropylamine, gave rise to ethers IV-XIX. Compounds IV and V were used to prepare derivatives XX-XXVI. Reduction of the 7-oxo group in the compound V by the action of sodium borohydride produced the 7-hydroxy derivatives ...