Crystal modifications of ( )-catechin and processes for...

Details Crystal modifications of ( )-catechin and processes for... Crystal modifications of ( )-catechin and processes for...

C - Chemistry, Metallurgy

07

D

260/360, 260/373

C07D 311/62 (2006.01) A61K 31/35 (2006.01)

Patent

CA 1212381

Novel crystal modifications, processes for their production, and pharmaceutical preparations containing them Abstract Novel crystal modifications of (+)-catechin monohydrate and of (+)-catechin anhydrate more suitable for pharmaceutical preparations for reasons of higher stability against moisture and/or light and distinguished from hitherto known modifications by unique X-ray diffraction spectra are produced by specific recrystallisation and/or crystal rearrangement processes. Pharmaceutical preparations comprising the novel crystal forms.

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