191034-76-1

Upstream product

• 191034-64-7 (3S,3(1S),4E)-3-<1-(((tert-bytyldimethylsilyl)oxy)methyl)-4-(trityloxy)butyl>-3,4-dimethylhex-4-enoic acid dimethyl amide 
• 191034-60-3 (E)-(2R,5S)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-3,4-dimethyl-8-trityloxy-oct-3-en-2-ol 

Downstream Products

• 191034-80-7 (3S,4S)-4-{[(tert-bytyldimethylsilyl)oxy]methyl}-3-methyl-7-(trityloxy)-3-[2-(trityloxy)ethyl]heptan-2-one 
• 191034-82-9 (3S,4S)-5-Hydroxy-4,5-dimethyl-4-(2-trityloxy-ethyl)-3-(3-trityloxy-propyl)-dihydro-furan-2-one 
• 191034-90-9 (3S,4S)-5-hydroxy-4,5-dimethyl-4-[2-(trityloxy)ethyl]-3-[3-(trityloxy)propyl]pyrrolidin-2-one 
• 191034-86-3 (3S,4S)-4-methyl-5-methylene-4-[2-(trityloxy)ethyl]-3-[3-(trityloxy)propyl]dihydrofuran-2-one 
• 191034-94-3 (3S,4S)-4-methyl-5-methylene-4-[2-(trityloxy)ethyl]-3-[3-(trityloxy)propyl]pyrrolidin-2-one 

Relevant academic research and scientific papers

Stereocontrolled synthesis of a nonracemic vitamin B12 A-B semicorrin

The first synthesis of a vitamin B12 A-B semicorrin 44 is described. Both A and B rings were prepared from the same precursor, enamide 40, which is obtained by a sequence of sigmatropic rearrangements and a biomimetic oxylactonization. The coup