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B. A. A. A. Balboul, A. A. Ahmed, H. Otsuka and A. de Adams, “4-Hydroxyphenylpropan-7,8-diols and Derivatives from Narvalina domingensis,” Phytochemisty, Vol. 42, No. 4, 1996, pp. 1191-1193. http://dx.doi.org/10.1016/0031-9422(96)00116-1

has been cited by the following article:

• TITLE: Microtropins J-P: 6’-O-(2”S,3”R)-2”-Ethyl-2”,3”-Dihydroxybutyrates of Phenolic Alcohol ß-D-Glucopyranosides from the Branches of Microtropis japonica

  AUTHORS: Yuka Uemura, Sachiko Sugimoto, Katsuyoshi Matsunami, Hideaki Otsuka, Yoshio Takeda

  KEYWORDS: Microtropis japonica; Celastraceae; Microtropin; (2S, 3R)-2-Ethyl-2, 3-Dihydroxybutyrate

  JOURNAL NAME: American Journal of Plant Sciences, Vol.4 No.10, October 9, 2013

  ABSTRACT: From the branches of Microtropis japonica (Celastraceae), seven phenolic alcohol glucosides, named microtropins J-P (1-7), were isolated. The 6-position of glucose was esterified with 2-ethyl-2,3-dihydroxybutyric acid. Microtropin K (2) was hydrolyzed under a mild basic condition to give methyl (2S,3R)-2-ethyl-2,3-dihydroxybutyrate, whose absolute structure was determined by the comparison of NMR data and the optical rotation value with that reported.