Diastereoselective resolution of 6-substituted glycosides via enzymatic hydrolysis
作者:Urszula Grabowska、David A. MacManus、Keith Biggadike、Mike I. Bird、Stephen Davies、Timothy Gallagher、Lee D. Hall、Evgeny N. Vulfson
DOI:10.1016/s0008-6215(97)00246-2
日期:1997.12
The diastereoselectivity of the enzymatic hydrolyses of 4-nitrophenyl 6-deoxy-6-methyl-(R)- and (S)-sulfinyl-beta-D-galactopyranoside (1a,b), 4-nitrophenyl 7-deoxy-D- and L-glycero-beta-D-galacto-heptopyranoside (2a,b) and 4-nitrophenyl 6,7-anhydro-D- and L-glycero-beta-D-galacto-heptopyranoside (3a,b) was investigated using a range of crude glycosidase preparations. It was shown that the enzymes display
4-硝基苯基6-脱氧-6-甲基-(R)-和(S)-亚磺酰基-β-D-吡喃半乳糖苷(1a,b),4-硝基苯基7-脱氧-D-和研究了L-甘油-β-D-半乳糖吡喃糖苷(2a,b)和4-硝基苯基6,7-脱水-D-和L-甘油-β-D-半乳糖吡喃糖苷(3a,b)的使用范围粗糖苷酶制剂的制备。结果表明,这些酶在非对映异构体之间显示出高度的区分性,从而证明了糖苷酶可用于非天然6-取代单糖衍生物的非对映异构拆分。