摘要 |
4-Acyl resorcinol ethers of formula (I) and their salts, in which R1 is lower alkyl, R2 is 5-tetrazolyl, alk is hydroxy-alkylene, for use as anti-allergy agents, are made by reaction of a cpd. of formula (II) with a cpd. of formula (III), in which one of X5 and X6 is hydroxy and the other is hydroxy-alkyl and rings A and B may be further substd. Reaction is carried out in an inert solvent in presence of a basic condensing agent.
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