Regioselective Synthesis of Novel Mono-Substituted D-lactose Fatty Acid Ester Derivatives
作者:Mina Narouz、Sameh Soliman、Rafik Bassily、Ramadan El-Sokkary、Adel Nasr、Mina Nashed
DOI:10.2174/15701786113109990018
日期:2013.7.1
Three regioisomers of lactose fatty acid monoesters at positions 3', 6' and 3 and other related compounds have been chemically synthesized. The 3'- and 6'-O-palmitoyl-D-lactose derivatives were prepared via the regioselective esterification at O-3' and O-6' of the dibutylstannylene derivatives obtained from benzyl 2,3,6-tri-O-benzyl-4-O-(2,6-di-Obenzyl-β-D-galactopyranosyl)-β-D-glucopyranoside (1)
化学合成了3',6'和3位的乳糖脂肪酸单酯的三种区域异构体以及其他相关化合物。3′-和6′-O-棕榈酰-D-乳糖衍生物是通过在O-3′和O-6′处对由苄基2,3,6-三-O-苄基获得的二丁基锡衍生物进行选择性酯化制备的。 -4-O-(2,6-二-O-苄基-β-D-吡喃半乳糖基)-β-D-吡喃葡萄糖苷(1)和苄基2,3,6-三-O-苄基-4-O-( 2,3-二-O-苄基-β-D-吡喃半乳糖基)-β-D-吡喃葡萄糖苷(5)分别与酰氯一起,然后氢解苄基。3-O-酰基-D-乳糖衍生物是通过在O-3处的苄基2,6-二-O-苄基-4-O-(2,6-二-O-苄基-3)区域选择性酯化制备的,