131121-22-7

Upstream product

• 18819-89-1 tetrabutylammonium benzoate 
• 131121-21-6 (4S,5R)-5-((3aR,4S,6R,6aR)-6-Methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-2,2-dioxo-2λ⁶-[1,3,2]dioxathiolane-4-carboxylic acid ethyl ester 
• 33985-40-9 (3aR,4S,6R,6aR)-tetrahydro-6-methoxy-2,2-dimethylfuro-[3,4-d][1,3]dioxole-4-carbaldehyde 
• 131121-19-2 (2S,3S)-2,3-Dihydroxy-3-((3aR,4R,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-propionic acid ethyl ester 
• 131121-18-1 (E)-ethyl 3-((3aR,4R,6R,6aR)-tetrahydro-4-methoxy-2,2-dimethylfuro[3,4-d][1,3]dioxol-6-yl)acrylate 

Downstream Products

• 131121-31-8 (E)-5-[(3S,3aR,5S,6S,7R,7aR)-3,6,7-Triacetoxy-2-(3-benzyloxy-2-oxo-propyl)-hexahydro-furo[3,2-b]pyran-5-yl]-pent-2-enoic acid ethyl ester 
• 131121-24-9 Acetic acid (2S,3S,3aR,5S,6R,7R,7aR)-3,5,6-triacetoxy-2-(3-benzyloxy-2-oxo-propyl)-hexahydro-furo[3,2-b]pyran-7-yl ester 
• 131121-26-1 Acetic acid (2S,3S,3aR,5S,6S,7R,7aR)-3,6-diacetoxy-2-(3-benzyloxy-2-oxo-propyl)-5-(3-hydroxy-propyl)-hexahydro-furo[3,2-b]pyran-7-yl ester 
• 131121-25-0 Acetic acid (2S,3S,3aR,5S,6S,7R,7aR)-3,6-diacetoxy-5-allyl-2-(3-benzyloxy-2-oxo-propyl)-hexahydro-furo[3,2-b]pyran-7-yl ester 
• 131121-29-4 C₂₃H₂₈O₈ 
• 131121-57-8 (E)-1-Benzyloxy-4-[(4S,5S)-5-((3aR,4R,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-but-3-en-2-one 
• 131121-28-3 C₂₃H₂₈O₈ 

Relevant academic research and scientific papers

Total synthesis of halichondrins: Enantioselective construction of a homochiral pentacyclic C1-C15 intermediate from D-ribose

The remarkable heterobicyclization of a homochiral acyclic precursor, derived diastereoselectively from D-ribose, is exploited in a synthesis of the intricate multicyclic poly ether C1 to C15 segment of halichondrins.