abstract |
The present invention relates to (1r,4r)-6'-fluoro-N,N-dimethyl-4-phenyl-4',9'-dihydro-3'H-spiro[cyclohexane-1,1 The crystalline form of '-pyran [3,4,b]吲哚]-4-amine, a pharmaceutical composition and a pharmaceutical agent, including a method of upgrading, upgrading and enriching it. |