New Paeonilactone-A Adducts Formed by Anaerobic Incubation of Paeoniflorin with Lactobacillus brevis in the Presence of Arylthiols.
作者:Atef A. ABDEL-HAFEZ、Meselhy R. MESELHY、Norio NAKAMURA、Masao HATTORI、Mahmoud A. EL-GENDY、Nadia M. MAHFOUZ、Tarek A. MOHAMED
DOI:10.1248/cpb.49.918
日期:——
During the course of preparing anticonvulsant paeonimetabolin-I adducts, new paeonilactone-A adducts: 9-phenylthiopaeonilactone-A, 9-(o-tolylthio)paeonilactone-A, 9-(m-tolylthio)paeonilactone-A. 9-(p-tolylthio)-paeonilactone-A and 9-(2-naphthylthio)paeonilactone-A, were obtained along with expected paeonimetabolin-I adducts by anaerobic incubation of paeoniflorin from peony roots with Lactobacillus brevis in the presence of the aromatic thiols, phenylthiol, o-tolylthiol, m-tolylthiol, p-tolylthiol and 2-naphthylthiol. The structures of these compounds were determined by spectroscopic methods including two dimensional (2D) NMR.
在制备抗惊厥芍药内苷-I 加合物的过程中,出现了新的芍药内酯-A 加合物:9-苯硫基芍药内苷-A、9-(邻甲苯硫基)芍药内苷-A、9-(间甲苯硫基)芍药内苷-A。在芳香硫醇、苯硫醇、邻甲苯硫醇、间甲苯硫醇、对甲苯硫醇和 2-萘硫醇的存在下,将牡丹根中的芍药苷与乳酸杆菌(Lactobacillus brevis)进行厌氧培养,得到了 9-(对甲苯硫基)-芍药内苷-A 和 9-(2-萘硫基)-芍药内苷-A,以及预期的芍药苷-I 加合物。这些化合物的结构是通过光谱方法(包括二维核磁共振)确定的。