title: 2,3'-Dihydroxycanthaxanthin, a new carotenoid with a 2-hydroxy-4-oxo-beta-end group from the hermit crab, Paralithodes brevipes.
abstract: A new carotenoid with a 2-hydroxy-4-oxo-beta-end group was isolated from the hermit crab, Paralithodes brevipes, as a minor component. Its structure was determined to be 2,3'-dihydroxy-beta,beta-carotene-4,4'-dione (1) by spectral data and the compound was named 2,3'-dihydroxycanthaxanthin. Chiral resolution of 1 by HPLC using a chiral column provided two stereoisomers, 1a and 1b. The 3'R and 3'S chirality were determined for 1a and 1b, respectively, by CD spectra.
authors.affiliation: Research Institute for Production Development, Kyoto, Japan. maoka@mbox.kyoto-inet.or.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Maoka
authors.forename: Naoshige
authors.initials: N
authors.lastname: Akimoto
mesh_terms: D000818:Animals; D033381:Anomura / Q000737:chemistry*; D002338:Carotenoids / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D013237:Stereoisomerism
chemical_list: C516242:2,3'-Dihydroxycanthaxanthin; D002338:Carotenoids