CRYSTALS OF PHENYLALANINE DERIVATIVES AND PRODUCTION METHODS THEREOF

The present invention provides crystals of phenylalanine derivatives of the formula (I), and particularly .alpha.-type, .gamma.-type, .epsilon. -type, .eta.-type, and .theta.-type crystals thereof. These crystals are excellent in preservation stability or moisture resistance. They can also be produc...

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Main Authors TAKAHASHI, SHINICHIRO, MATSUZAWA, TOSHIHIRO, KATAOKA, NORIYASU, TATARA, AKINORI
Format Patent
LanguageEnglish
French
Published 24.07.2012
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Summary:The present invention provides crystals of phenylalanine derivatives of the formula (I), and particularly .alpha.-type, .gamma.-type, .epsilon. -type, .eta.-type, and .theta.-type crystals thereof. These crystals are excellent in preservation stability or moisture resistance. They can also be produced on the industrial scale. (see formula I)
Bibliography:Application Number: CA20042547625