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US 6,184,233 B2Granted
Crystals of piperidine derivatives, intermediates for production of the same, and process for producing the same
AssigneeAjinomoto Co., Inc.
InventorsAkiko Fujii, Mie Kubo, Tomoya Yamamoto, Jiro Shimada, Ryuichi Mihara, Hirokazu Naora, Koji Asai
Life of this patent
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Abstract
Monohydrate and trihydrate crystals of N-(2-(4-(5H dibenzo [a,d]cyclohepten-5-ylidene)-piperidino)ethyl)-1-formyl-4-piperidinecarboxamide hydrochloride having excellent stability.
Claims7
Crystals of N-(2-(4-(5H- dibenzo (a,d) cyclohepten-5-ylidene)-piperidino)ethyl)-1-formyl-4-piperidinecarboxamide hydrochloride monohydrate, wherein peaks are present at diffraction angles (2η±0.1) of 6.3, 11.3, 18.7, 19.6, 20.3, 21.2, 22.8, 25.2, 26.0 and 26.4 in powder X-ray diffraction.
Dependencies are inferred from the claim text.