Enantioselective glucosylation of (±)-secondary alcohols with plant glucosyltransferases
摘要:
Two glucosyltransferases were isolated from plant cell cultures of Catharanthus roseus and Nicotiana tabacum. The enzyme from C roseus enantioselectively glucosylated (+/-)-secondary alcohols to give the glucosides of (R)-alcohols, while the glucosylation with that from N. tabacum gave preferentially the glucosides of (S)-alcohols. (C) 2004 Elsevier Ltd. All rights reserved.
Enantioselective glucosylation of (±)-secondary alcohols with plant glucosyltransferases
摘要:
Two glucosyltransferases were isolated from plant cell cultures of Catharanthus roseus and Nicotiana tabacum. The enzyme from C roseus enantioselectively glucosylated (+/-)-secondary alcohols to give the glucosides of (R)-alcohols, while the glucosylation with that from N. tabacum gave preferentially the glucosides of (S)-alcohols. (C) 2004 Elsevier Ltd. All rights reserved.
Enantioselective Glucosylation of (<i>R</i>,<i>S</i>)-1-Phenylethanol by the Cultured Suspension Cells of Higher Plants
作者:Ym Sook Lee、Diana I. Ito、Kazuhiko Koya、Shunsuke Izumi、Toshifumi Hirata
DOI:10.1246/cl.1996.719
日期:1996.8
its acetate were transformed into their β-D-glucopyranoside by the culturedsuspensioncells of Nicotianatabacum and Catharanthus roseus. The glucosylation with the green N. tabacumcells occurred enantioselectively to give the glucoside of the (S)-alcohol, while the biotransformation with the white N. tabacumcells and C. roseus cells gave preferentially the glucoside of the (R)-alcohol.
The biotransformation of (RS)-1-phenylethanol with cultured cells of Catharanthus roseus gave its vicianoside [α-L-arabinopyranosyl-(1-6)-β-D-glucopyranoside], primeveroside [β-D-xylopyranosyl-(1-6)-β-D-glucopyranoside] and gentiobioside [β-D-glucopyranosyl-(1-6)-β-D-glucopyranoside] via the corresponding glucoside. It was found that primeveroside and gentiobioside were enantioselectively composed of only (R)-1-phenylethanol as its aglycone moiety.
Enzymatic resolution of (RS)-1-phenylalkyl β-d-glucosides to (R)-1-phenylalkyl β-primeverosides and (S)-1-phenylalkyl β-d-glucosides via plant xylosyltransferase
作者:Kei Shimoda、Hisashi Katsuragi
DOI:10.1016/j.tetasy.2010.07.023
日期:2010.8
The stereoselective xylosylation of (RS)-1-phenylalkyl beta-D-glucosides was investigated using plant xylosyltransferase isolated from cultured Catharanthus roseus cells. Enzymatic xylosylation of (RS)-1-phenylethyl beta-D-glucoside afforded (R)-1-phenylethyl beta-primeveroside and (S)-1-phenylethyl beta-D-glucoside. The (R)-selective xylosylation of (RS)-1-phenylbutyl beta-D-glucoside also occurred to give (R)-1-phenylbutyl p-primeveroside and recovered (S)-1-phenylbutyl beta-D-glucoside. (C) 2010 Elsevier Ltd. All rights reserved.
Ooi, Yasuhiro; Mitsuo, Naoki; Satoh, Toshio, Chemical and pharmaceutical bulletin, 1985, vol. 33, # 12, p. 5547 - 5550
作者:Ooi, Yasuhiro、Mitsuo, Naoki、Satoh, Toshio
DOI:——
日期:——
Enantioselective glucosylation of (±)-secondary alcohols with plant glucosyltransferases
作者:Kei Shimoda、Naoji Kubota、Hiroki Hamada
DOI:10.1016/j.tetasy.2004.06.022
日期:2004.8
Two glucosyltransferases were isolated from plant cell cultures of Catharanthus roseus and Nicotiana tabacum. The enzyme from C roseus enantioselectively glucosylated (+/-)-secondary alcohols to give the glucosides of (R)-alcohols, while the glucosylation with that from N. tabacum gave preferentially the glucosides of (S)-alcohols. (C) 2004 Elsevier Ltd. All rights reserved.