Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent
1992-09-17
1995-08-22
Mars, Howard T.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing heterocyclic carbon compound having only o, n, s,...
435280, 549291, C12P 1706
Patent
active
054439701
ABSTRACT:
A process for the separation of at least one isomer from a mixture of isomers of a tetrahydropyran-2-one, having at least two chiral centres, which comprises selective reaction of at least one isomer with a reagent catalysed by a hydrolase enzyme whereby at least one isomer is preferentially converted into a distinct chemical species from the other isomers so that it is susceptible of separation by an appropriate chemical or physical separation process in which the tetrahydropyranone is of Formula (1): ##STR1## wherein: Z is --H or a protecting group susceptible of reaction with the reagent under the influence of the enzyme; and
REFERENCES:
patent: 4061769 (1977-12-01), Ohno et al.
patent: 4255444 (1981-03-01), Oka et al.
patent: 5166364 (1992-11-01), Saunders et al.
Enzyme Nomenclature 1978, I.U.B. (1979), pp. 232-240.
Carey et al., Adv. Org. Chem. 2nd ed.; Part A: Structure and Mechanisms (1984), pp. 69-76.
M. Fukui, et al., "Beta-Hydroxy-Delta-Lactones as Chiral Building Blocks Involving 1,3-Dihydroxyl Functions. 1. New Strategies for Stereoselective Construction of 2-Methyl-3,5-Dihydroxy Esters", Chemical and Pharmaceutical Bulletin, vol. 38, No. 10, Oct. 1990, pp. 2890-2892.
D. A. Stolze, et al., "Model Studies Towards the Synthesis of Aplysiatoxin. Spiro-Conformational Control on the Reactivity of C2-Oxidised Spiroketals", Tetrahedron Letters, vol. 32, No. 33, Aug. 12, 1991, pp. 4081-4084.
A. M. Bittencourt, et al., "The Natural Occurrence of 6-Styryl-2-Pyrones and Their Syntesis", Tetrahedron, vol. 27 No. 5, Mar. 1971 pp. 1043-1048.
W. C. Groutas, et al., "Substituted 2-Pyrones, 2-Pyridones, and Other Congeners of Elasnin as Potential Agents for the Treatment of Chronic Obstructive Lung Diseases", Journal of Medicinal Chemistry vol. 28, No. 8, Aug. 1985, pp. 1106-1109.
Blacker Andrew J.
Crosby John
Herbert John A. L.
Kestler Kimberly J.
Mars Howard T.
Zeneca Limited
LandOfFree
Pyranones does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pyranones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyranones will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2141245