260244-85-7

Upstream product

• 2537-48-6 diethyl 1-cyanomethylphosphonate 
• 260244-82-4 C₄₇H₄₆O₁₁ 
• 14218-11-2 2,3,4,6-tetra-O-benzoylglucosyl bromide 
• 50281-38-4 (3R)-3-hydroxy-β-ionone 
• 83021-07-2 (S,E)-4-[4-(tert-butyldimethylsilyloxy)-2,6,6-trimethylcyclohex-1-en-1-yl]but-3-en-2-one 
• 104707-00-8 methyl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-glucopyranoside 

Downstream Products

• 53761-98-1 (all-E)-(3R,3'R)-3'-(β-D-glucopyranosyloxy)-β,β-caroten-3-ol 
• 135589-15-0 (all-E)-(3R)-3-(β-D-glucopyranosyloxy)-β,β-carotene 

Relevant academic research and scientific papers

Synthesis of zeaxanthin- and cryptoxanthin-β-D-glucopyranosides

β-Glucosidation of (3R)-3-hydroxy-β-ionone (6) was achieved in a reasonable yield by use of tetra-O-benzoyl-α-D-glucopyranosyl bromide (8 c) as a glycosyl donor and silver triflate as an activator. The resulting glucoside (9) was transformed into the β-apo-12'-carotenal (18), which was condensed with the Wittig salt (19) or (20) to provide zeaxanthin-mono-β-D- glucopyranoside (3) or cryptoxanthin-β-D-glucopyranoside (4).