Optical resolution of carboxylic drugs by reversed phase HPLC using chiral stationary phases.
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- ARAI Takashi
- Production Technology Research Laboratries, Daiichi Phrmaceutical Co., Ltd.
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- KURODA Hiroki
- Production Technology Research Laboratries, Daiichi Phrmaceutical Co., Ltd.
Bibliographic Information
- Other Title
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- 光学活性固定相を用いた逆相高速液体クロマトグラフィーによるカルボキシル基を有する医薬品の光学分割
- コウガク カッセイ コテイソウ オ モチイタ ギャクソウ コウソク エキタイ
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Abstract
The influences of achiral factors upon the retention and enantioselectivety of N-3, 5-dinitrobenzoyl derivatives of baclofen (4-amino-3-p-chlorophenylbutyric acid), a skeletal muscle relaxant, and DP-1904, a novel thromboxane A2 synthetase inhibitor, using three kinds of chiral stationary phases (long alkyl spacer-; LA-, short alkyl spacer-; SA- and helical-; Hel- type CSPs) have been examined. Mobile phases of organic solvent-aqueous phosphate buffer were used and the effects of organic solvent concentration, pH and the addition of achiral ion-pairing agents were studied. As a result, optimum ranges of enantioselectivities occured at each pH and contents of organic solvents except for short alkyl chain spacer type CSP. And we observed a linear relationship between the contents of organic solvents and In k' (k'=capacity factor). In the case of LA-CSP, the addition of achiral ion-pairing reagents (alkyltrimethylammonium phosphate) was effective. The increase in the concentration and the chain length of alkyl portion of the ion-pairing reagent gave increased retention and enantioselectivity for N 3, 5-dinitrobenzoyl derivatives of baclofen on LA-CSP. These results suggest that enantiomeric separation using HPLC can be improved by achiral factors.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 41 (9), 419-424, 1992
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390001204051995648
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- NII Article ID
- 110002906440
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- NII Book ID
- AN00222633
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- NDL BIB ID
- 3789661
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- ISSN
- 05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed