6-dideoxy- l - lyxo -hexopyranosyl (‘4-deoxy- l -rhamnosyl’) and 4-deoxy-4-fluoro- l -rhamnosyl monosaccharide residues. The preparation of the deoxyfluororhamnose was not straightforward, and revealed some unexpected behavior of the diethylaminosulfur trifluoride (DAST) reagent. The new glycosyl donors were used to synthesize two analogs of the mycobacterial arabinogalactan linkage disaccharide →4)-α- l
摘要我们为4,6-二脱氧-1-Lyxo-己
吡喃糖基('4-deoxy-1-rhamnosyl')和4-deoxy-4-fluoro-1-rhamnosyl
单糖残基制备了
硫代糖苷供体。脱氧
氟鼠李糖的制备并不简单,并且揭示了
二乙基氨基三
氟化
硫(
DAST)试剂的某些出乎意料的行为。新的糖基供体用于合成分枝杆菌
阿拉伯半乳聚糖键合二糖→4)-α-1-Rha-(1→3)-α-d-GlcNAc的两个类似物。这些类似物是分枝杆菌细胞壁构建早期阶段所涉及的酶的潜在
抑制剂家族的原型。