Inclusion complexes of trihexyphenidyl with natural and modified cyclodextrins

التفاصيل البيبلوغرافية
العنوان: Inclusion complexes of trihexyphenidyl with natural and modified cyclodextrins
المؤلفون: Maeda, Hideko, Tanaka, Risa, Nakayama, Hirokazu
بيانات النشر: BioMed Central Ltd.
سنة النشر: 2015
المجموعة: BioMed Central
مصطلحات موضوعية: Trihexyphenidyl, Sulfobutylether-β-cyclodextrin, Inclusion complexes, Spectrofluorometry, Solubility
الوصف: The solubility of trihexyphenidyl (Thp) was improved by its combination with β -cyclodextrin ( β− CD) and modified β -CDs. The solubility of Thp was found to be increased in the presence of β -CD, hydroxypropyl- β -cyclodextrin (HP- β -CD), methyl- β -cyclodextrin (Me- β -CD) and sulfobutylether- β -cyclodextrin (SBE- β -CD). In particular, the solubility of Thp in conjunction with SBE- β -CD was increased by a factor of 11. The formation constant ( K c ) for the Thp/SBE- β -CD inclusion complex was determined to be 2300 L/mol based on fluorometry data. The structure of the Thp/SBE- β -CD complex in aqueous solution was examined by 1 H- 1 H rotating frame nuclear Overhauser effect spectroscopy (ROESY) NMR, and the phenyl moiety of the Thp was found to coordinate with the secondary hydroxyl face of the SBE- β -CD. A solid Thp/SBE- β -CD inclusion complex was prepared by freeze-drying.
نوع الوثيقة: report
اللغة: English
العلاقة: http://www.springerplus.com/content/4/1/218Test
الإتاحة: http://www.springerplus.com/content/4/1/218Test
حقوق: Copyright 2015 Maeda et al.; licensee Springer.
رقم الانضمام: edsbas.563E5AAD
قاعدة البيانات: BASE