105087-29-4

Upstream product

• 82415-23-4 Dithiocarbonic acid S-[(E)-(R)-1-{(E)-2-[(2S,4S,6S,9S)-4-(tert-butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-vinyl}-1,3-dimethyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl] ester S-methyl ester 
• 104705-94-4 (2R,4R,6R,8R,9S)-2-<(5R)-8-<(tert-butyldimethylsilyl)oxy>-3,5-dimethyl-2(EZ),6(E)-octadien-1-yl>-4-<(tert-butyldiphenylsilyl)oxy>-8,9-dimethyl-1,7-dioxaspiro<5.5>undecane 

Downstream Products

• 104759-58-2 (2R,4R,6R,8R,9S)-4-<(tert-butyldiphenylsilyl)oxy>-2-<(5R)-8-oxo-3,5-dimethyl-2(Z),6(E)-octadien-1-yl>-8,9-dimethyl-1,7-dioxaspiro<5.5>undecane 
• 104759-57-1 (2R,4R,6R,8R,9S)-4-<(tert-butyldiphenylsilyl)oxy>-2-<(5R)-8-oxo-3,5-dimethyl-2(E),6(E)-octadien-1-yl>-8,9-dimethyl-1,7-dioxaspiro<5.5>undecane 
• 82415-24-5 (2E,6E)-(R)-8-[(2R,4S,6R,8R,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-4,6-dimethyl-octa-2,6-dienal 
• 82415-24-5 (2E,6E)-(R)-8-[(2R,4S,6R,8S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-4,6-dimethyl-octa-2,6-dienal 

Relevant academic research and scientific papers

Total Synthesis of (+)-Milbemycin β3

(+)-Milbemycin β3 (1) was prepared by total synthesis from (6S,8R,9S)-methyl 8,9-dimethyl-4-oxo-1,7-dioxaspiroundec-2-ene-2-carboxylate (2), (4R,6R)-4-methyl-6-phenylsulphonyl-(E)-hept-2-en-1-ol (3a), and 2-ethyl-4-methoxy-5-methylbenzoic