Controls of Solution-mediated Polymorphic Transition and Crystal Growth Rate Utilizing Cyclodextrin Complexation
| Project/Area Number |
23590063
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical pharmacy
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| Research Institution | Sojo University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
IOHARA Daisuke 崇城大学, 薬学部, 助教 (40454954)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | シクロデキストリン / アセトヘキサミド / アスピリン / 新規結晶多形 / 晶癖 / 溶液媒介性多形転移 / 結晶成長速度 / 包接複合体 / 結晶多形 / 米国 |
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| Research Abstract |
The controls of solution-mediated polymorphic transition and crystal growth rate of drugs were conducted, utilizing inclusion complexations with cyclodextrins (CyDs). 1. A new polymorph of acetohexamide (Form VI) was prepared via the formation of a complex with 2-hydroxybutyl-b-cyclodextrin (HB-b-CyD) in aqueous solution. The new crystalline Form VI was highly soluble in water and physically and chemically stable, compared with other polymorphs (Forms I~V). 2. The crystal shape of aspirin was changed from plate to needle crystals, when the crystallizing solvent was changed from water to aqueous 2,6-dimethyl-b-CyD and 2-hydroxybutyl-b-CyD solutions. The results indicate that 2-hydroxybutyl-b-CyD is useful for preparation of metastable forms and control of crystal habit of solid drugs.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Improvement of Some Physicochemical Properties of Arundic Acid, (R)-(-)-2-Propyloctanonic Acid, by Complexation with Hydrophilic Cyclodextrins2011
Author(s)
Y.Miyamoto, M.Nakahara, K.Motoyama, T.Ishiguro, Y.Oda, T.Yamanoi, I.Okamoto, A.Yagi, H.Nishimura, F.Hirayama, K.Uekama, H.Arima
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Journal Title
International Journal of Pharmaceutics
Volume: 413
Issue: 1-2
Pages: 63-71
DOI
Related Report
Peer Reviewed
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