title: 1H and 13C NMR spectral assignments of chalcones bearing pyrazoline-carbothioamide groups.
abstract: Chalcones are known to act on various physiological targets. As a result, structural modifications of chalcones have been studied extensively. Benzochalcones, in which the A-ring of chalcone is substituted with a naphthalene unit, inhibits breast cancer resistance protein. Chalcones in which the α,β-unsaturated carbonyl group is switched with a pyrazoline moiety are potent cytotoxic agents against various cancer cell lines, and chalcones with a pyrazoline-1-carbothioamide group instead of an α,β-unsaturated carbonyl group exhibit antimicrobial activities. The present report describes hybrid molecules designed from benzochalcone and pyrazoline-carbothioamide. Methoxylation of plant-derived polyphenols alters their hydrophobicity, resulting in changes in biological function and intracellular compartmentation. In the current study, 22 novel methoxylated 3-(naphthalen-2-yl)-N,5-diphenyl-pyrazoline-1-carbothioamide derivatives were prepared. This report provides complete assignments of their (1)H and (13)C NMR data, which can be used to subsequently identify chalcones bearing pyrazoline-carbothioamide groups.
authors.affiliation: Division of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul, 143-701, Korea.
authors.forename: Hyuk
authors.initials: H
authors.lastname: Yoon
authors.forename: Seunghyun
authors.initials: S
authors.lastname: Ahn
authors.forename: Mijoo
authors.initials: M
authors.lastname: Park
authors.forename: Dong-Wook
authors.initials: DW
authors.lastname: Kim
authors.forename: Sang Ho
authors.initials: SH
authors.lastname: Kim
authors.forename: Dongsoo
authors.initials: D
authors.lastname: Koh
authors.forename: Yoongho
authors.initials: Y
authors.lastname: Lim
mesh_terms: D002247:Carbon Isotopes; D047188:Chalcones / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D015394:Molecular Structure; D011522:Protons; D011720:Pyrazoles / Q000737:chemistry*; D012015:Reference Standards; D013854:Thioamides / Q000737:chemistry*
chemical_list: D002247:Carbon Isotopes; D047188:Chalcones; D011522:Protons; D011720:Pyrazoles; D013854:Thioamides
keywords: 13C NMR; 1H NMR; NMR; chalcone; flavonoid; pyrazoline-carbothioamide