Novel hydroxyphenylaminobenzenealkanols, useful as antiasthmatic agents, are of the formula
wherein R is hydrogen, lower-alkyl, lower-alkoxy or halo; R'is hydrogen or lower-alkyl; R"is hydrogen, lower-alkyl or halo; and Y is CnH2n wherein n is 1-2. The compounds are prepared by de-etherification of the corresponding phenol alkyl or benzyl ethers; by reduction of the corresponding benzoic acids or esters thereof; or by reduction of ketones wherein -Y-OH is replaced by -COCH3. The invention also relates to the novel benzyl ether intermediates.
可用作抗哮喘药的新型羟苯胺苯烷醇的结构式为
其中 R 是氢、低级烷基、低级烷氧基或卤素;R'是氢或低级烷基;R "是氢、低级烷基或卤素;Y 是 CnH2n,其中 n 是 1-2。这些化合物的制备方法有:相应的苯酚烷基醚或苄基醚的脱醚;相应的苯甲酸或其酯的还原;或酮的还原,其中 -Y-OH 被 -COCH3 取代。本发明还涉及新型苄基醚中间体。