title: Enantiomeric separation of novel anticancer agent 5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-one.
abstract: The enantiomers of 5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-one, a novel anticancer agent, were separated by derivatisation with caronaldehyde, separation of the resulting diastereoisomers of the corresponding esters by silica gel column chromatography and regeneration of alcohols (S)-5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-one and (R)-5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-one under aqueous conditions. The absolute configuration of the enantiomers was determined by 1H NMR studies of the corresponding Mosher esters. Alternatively, the enantiomers were separated by preparative HPLC to collect the (S)- and (R)-5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-ones with high purity which was comparable with that obtained by the chemical method. The details of these methods have been presented herein.
authors.affiliation: Organic Chemistry: Technology Division, National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.
authors.forename: Popat D
authors.initials: PD
authors.lastname: Shinde
authors.forename: Vinod H
authors.initials: VH
authors.lastname: Jadhav
authors.forename: Hanumant B
authors.initials: HB
authors.lastname: Borate
authors.forename: Sunil R
authors.initials: SR
authors.lastname: Bhide
authors.forename: Kiran B
authors.initials: KB
authors.lastname: Sonawane
authors.forename: Radhika D
authors.initials: RD
authors.lastname: Wakharkar
mesh_terms: D000970:Antineoplastic Agents / Q000032:analysis / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003517:Cyclopentanes / Q000032:analysis / Q000737:chemistry*; D015394:Molecular Structure; D013237:Stereoisomerism
chemical_list: C517659:5-hydroxy-3-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-cyclopent-2-en-1-one; D000970:Antineoplastic Agents; D003517:Cyclopentanes