Process for preparing an alpha-lipoic acid/cyclodextrin...

Details Process for preparing an alpha-lipoic acid/cyclodextrin... Process for preparing an alpha-lipoic acid/cyclodextrin...

2005-12-14

2010-06-15

Jiang, Shaojia Anna (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C549S002000, C549S039000

Reexamination Certificate

active

07737269

ABSTRACT:
The invention relates to a process for the preparation of a cyclodextrin/alpha-lipoic acid complex, wherein in a first step, an alpha-lipoic acid and a cyclodextrin are dissolved in an aqueous alkaline solution having a pH above pH 7, and in a second step an acid is added to lower the pH of the solution to a pH below pH 7.

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mr—workshop/24—lab—manual.htm.
Tong Lin-Hui, Pang Zheng-Zhi and Yi Ying, “Inclusion Complexes of α- and β-Cyclodextrin with α-Lipoic Acid”, Journal of Inclusion Phenomena and Molecular Recognition in Chemistry, vol. 23, 1995, pp. 119-126.
Derwent Abstract Corresponding to EP 0 654 484 A2.
Trentin et al., “Capillary zone electrophoresis study of cyclodextrin—lipoic acid host-guest interaction”, Electrophoresis 2002, 23, pp. 4117-4122.
Heng L. Jin et al., Optical Enrichment of Dansyl-rac-Amino Acids by formation of Crystalline Inclusion Complexes with Cyclodextrins, Chirality 1:137-141 (1989); 5 pages.

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