title: Structures of KS-501 and KS-502, the new inhibitors of Ca2+ and calmodulin-dependent cyclic nucleotide phosphodiesterase.
abstract: The structures of KS-501 and KS-502, new inhibitors of Ca2+ and calmodulin-dependent cyclic nucleotide phosphodiesterase, were determined to be 2-(beta-D-galactofuranosyloxy)-6-heptyl-4-hydroxybenzoic acid 3-heptyl-5-hydroxyphenyl ester and 2-(beta-D-galactofuranosyloxy)6-heptyl-4-hydroxybenzoic acid 4-carboxy-3-heptyl-5-hydroxyphenyl ester, respectively, on the basis of chemical and physico-chemical evidences.
authors.affiliation: Tokyo Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yasuzawa
authors.forename: Y
authors.initials: Y
authors.lastname: Saitoh
authors.forename: H
authors.initials: H
authors.lastname: Sano
mesh_terms: D015087:2',3'-Cyclic-Nucleotide Phosphodiesterases / Q000037:antagonists & inhibitors*; D002118:Calcium / Q000037:antagonists & inhibitors*; D055598:Chemical Phenomena; D002621:Chemistry; D062385:Hydroxybenzoates / Q000032:analysis* / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D062385:Hydroxybenzoates; C060469:KS 502; C060468:KS 501; D015087:2',3'-Cyclic-Nucleotide Phosphodiesterases; D002118:Calcium