102795-13-1

Upstream product

• 102795-18-6 (3R,8S,9S)-10-Benzenesulfonyl-3-benzyloxy-8-(1-ethoxy-ethoxy)-9-methyl-1-[(4S,6R)-2,2,6-trimethyl-6-(tetrahydro-pyran-2-yloxymethyl)-[1,3]dioxan-4-yl]-dec-5-yn-4-ol 
• 102850-53-3 (R)-2-((S)-2-Benzenesulfonyl-1-methyl-ethyl)-oxirane 
• 102795-08-4 (2R,3S)-4-Benzenesulfonyl-3-methyl-butane-1,2-diol 
• 102795-00-6 (2S,3S)-1-Benzenesulfonyl-2-methyl-hex-5-yn-3-ol 
• 102795-15-3 (3R,4S)-5-Benzenesulfonyl-4-methyl-pentane-1,3-diol 
• 102795-07-3 (S)-6-((S)-2-Benzenesulfonyl-1-methyl-ethyl)-3,6-dihydro-pyran-2-one 
• 102795-17-5 [(2S,3S)-3-(1-Ethoxy-ethoxy)-2-methyl-hex-5-yne-1-sulfonyl]-benzene 
• 102795-06-2 Acetic acid (2R,3S)-2-((S)-2-benzenesulfonyl-1-methyl-ethyl)-6-oxo-3,6-dihydro-2H-pyran-3-yl ester 
• 102795-02-8 (2R,3S,6S)-2-((E)-2-Benzenesulfonyl-2-trimethylsilanyl-vinyl)-6-isopropoxy-3,6-dihydro-2H-pyran-3-ol 
• 102795-05-1 Acetic acid (2R,3S,6S)-2-((S)-2-benzenesulfonyl-1-methyl-ethyl)-6-hydroxy-3,6-dihydro-2H-pyran-3-yl ester 
• 102823-47-2 2-[(S)-1-((S)-2-Benzenesulfonyl-1-methyl-ethyl)-4,4-dibromo-but-3-enyloxy]-tetrahydro-pyran 
• 102794-96-7 Benzoic acid (1S,2S)-3-benzenesulfonyl-1-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-methyl-propyl ester 
• 102794-98-9 [(3S,4S)-5-Benzenesulfonyl-4-methyl-3-(tetrahydro-pyran-2-yloxy)-pentyloxy]-tert-butyl-dimethyl-silane 
• 102795-09-5 Toluene-4-sulfonic acid (2R,3S)-4-benzenesulfonyl-2-hydroxy-3-methyl-butyl ester 

Relevant academic research and scientific papers

Synthetic studies toward marine toxic polyethers. 4. Synthesis of segment-A of okadaic acid via anti-selectivity by heteroconjugate addition

Segment-A of okadaic acid was synthesized in an optically active form by coupling the lithium acetylide (segment-A2) and the previously prepared segment-A1. The key step was the preparation of the anti-diastereoisomer for the C-12/13