NOVEL CRYSTAL FORMS OF TRICYCLIC BENZOPYRAN COMPOUND AND PROCESSES FOR PRODUCING SAME

[PROBLEMS TO BE SOLVED] To provide crystal forms of (3R, 4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dihydro-2H-pyrano[2,3-g]quinolin-3-ol that are excellent as a drug, and production methods thereof. [MEANS FOR SOLVING THE PROBLEMS] Production methods including crystallizing (3R, 4S)...

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Bibliographic Details
Main Authors UMEDA YASUHIRO, TAKADA YASUTAKA, KAWAHARA SHIRO, KAMON MIYAKO
Format Patent
LanguageEnglish
Korean
Published 14.03.2012
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:[PROBLEMS TO BE SOLVED] To provide crystal forms of (3R, 4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dihydro-2H-pyrano[2,3-g]quinolin-3-ol that are excellent as a drug, and production methods thereof. [MEANS FOR SOLVING THE PROBLEMS] Production methods including crystallizing (3R, 4S)-7-hydroxymethyl-2,2,9-trimethyl-4-(phenethylamino)-3,4-dlhydro-2H-pyrano[2,3-g]quinolin-3-ol from an acetate ester solvent, an aliphatic hydrocarbon solvent, a nitrile solvent, an aromatic hydrocarbon solvent, a ketone solvent or an ether solvent, and crystal forms obtained according to the methods.
Bibliography:Application Number: KR20117028198