65414-74-6Relevant articles and documents
Amide derivatives and their medical use
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Paragraph 0049; 0051; 0052, (2018/04/21)
The invention relates to novel amide derivatives shown in a structural formula I in the specification or a pharmaceutically acceptable salt thereof, a medicine composition which takes the compounds as active components, and an application of the derivatives or the pharmaceutically acceptable salt of the derivatives to preparation of analgesia medicines. In the structural formula I, R1 and R2 are a hydrogen atom and a C1-C3 alkyl; R3 is hydrogen atom, C1-C3 alkyl, phenyl or a hydroxyl-substituted alkyl.