An Efficient and Practical Synthesis of Remogliflozin Etabonate, a Potent Inhibitor of Low-Affinity Na+-Dependent Glucose Co-Transporter (SGLT2)
摘要:
A practical process for the preparation of remogliflozin etabonate, a prodrug of the selective low-affinity Na+-dependent glucose co-transporter (SGLT2) inhibitor, remogliflozin, is described. We established a chemoselective synthetic route to 1,2-dihydro-4-[(4-isopropoxyphenypmethyl]-1-isopropyl-5-methyl-3H-pyrazol-3-one and an efficient O-glycosylation of this compound with 2,3,4,6-tetra-O-pivaloyl-alpha-D-glucopyranosyl bromide. This synthetic process provided remogliflozin etabonate in a 39% overall yield from commercially available 4-isopropoxybenzaldehyde.
A 5C + 5C bicycloaromatization reaction via an aldol condensation cascade. A regioselective synthesis of functionalized naphthalenes from acyclic precursors
Synthesis of α-unsubstituted aldol adducts utilizing enantiomerically pure β-keto δ-dioxolane sulfoxides
作者:Frances Rose Blase、Hung Le
DOI:10.1016/0040-4039(95)00853-5
日期:1995.6
We report an efficient means to synthesize either enantiomer of α-unsubstitutedaldoladducts in high enantiomeric excess through the use of β-ketoδ-dioxolanesulfoxide 4. Through a short sequence of reactions, α-unsubstitutedaldol products are obtainable in high yield.