191807-05-3

Upstream product

• 55362-80-6 9-bromononan-1-ol 

Downstream Products

• 197916-04-4 methyl (11S)-11-[[(4,6-O-benzylidene-β-D-glucopyranosyl)-(1->2)-3,4-O-isopropylidene-β-D-fucopyranosyl]oxy]hexadecanoate 
• 180782-81-4 (S)-1-(hydroxycarbonyl)pentadec-10-yl O-(4,6-O-benzylidene-β-D-glucopyranosyl)-(1->2)-3,4-O-isopropylidene-β-D-fucopyranoside 1,3-(B)-lactone 
• 180782-75-6 1-(methoxycarbonyl)pentadec-10(S)-yl O-(2,3-di-O-acetyl-4,6-O-benzylidene-β-D-glucopyranosyl)-(1->2)-3,4-O-isopropylidene-β-D-fucopyranoside 
• 180782-78-9 1-(hydroxycarbonyl)pentadec-10(S)-yl O-(4,6-O-benzylidene-β-D-glucopyranosyl)-(1->2)-3,4-O-isopropylidene-β-D-fucopyranoside 

Relevant academic research and scientific papers

Total synthesis of tricolorin A

Tricolorin A (1), a structurally amazing resin glycoside with promising bioactivities from Ipomoea tricolor cav. (convolvulaceae), was synthesized in a total of 45 steps, with the longest linear sequence of 20 steps and overall yield of 0.65% from D-mannitol. The AB disscharide 19-membered lactone 2 was constructured by a regioselective macrolactonization using Corey-Nicolaou protocol. The macrolactone tetrasaccharide 33 was realized either by 'one- pot two-step' glycosylation procedure or by a stepwise assembly employing the 'armed-disarmed' glycosylation strategy.

The First Total Synthesis of Tricolorin A

Keywords: glycosylations; macrocycles; one-pot reactions; total synthesis; tricolorin A