Polymorphic form of 6-(4-chlorophenyl)-2,2-dimethyl-7-Phenyl-2,3-Dihydro-1h-Pyrrolizin-5-Ylacetic Acid
申请人:Albrecht Wolfgang
公开号:US20090209610A1
公开(公告)日:2009-08-20
The present invention relates to a new crystalline modification of 6-(4-chlorophenyl)-2,2-dmethyl-7-phenyl-2, S-dihydro-1H-pyrrolizin-S-ylacetic acid which is referred to as polymorph B. It has a peak in the solid state
13
C-NMR spectrum (with adamantane as external reference standard; CH group d=29.45 ppm) in the range from 179.8 to 180.2 ppm and can be processed directly to a pharmaceutical formulation.