专利名称：HYDROXYPHENYLHYDROXYALKYLAMINOA…发明人：KLINGLER K,DT申请号：US3728346D申请日：19710716公开号：US3728346A公开日：19730417
摘要：Compounds are prepared having the formula Where R1 and R2 are alkyl of oneto four carbon atoms or one of them is hydrogen, R3 is hydrogen or alkyl of one to twoand n is 1 or 2 or a salt thereof. The compounds have outstanding broncholytic activity.
申请人：DEUTSCHE GOLD UND SILBER SCHEIDEANSTALT,DT
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