Synthesis of methyl 2,3,6-trideoxy-4-C-(2,5-dimethoxybenzyl)-α-L-threo-hex-2-enopyranoside

Article abstract of DOI:10.1080/07328309808002326

Methyl 2,3-O-protected α-L-lyxopyranosid-4-uloses (9 and 19), obtained from L-rhamnose (8), react with 2,5-dimethoxybenzyllithium to afford, with high stereoselectivity, compounds 10a and 20a, respectively. After protection of the 4-OH group, ethers 10b a