140840-74-0

Upstream product

• 140840-67-1 [2-(1-Benzenesulfonyl-1H-indol-3-yl)-1-(2-benzyloxy-ethyl)-piperidin-(4E)-ylidene]-acetic acid methyl ester 
• 140858-28-2 2-<1-(phenylsulfonyl)-3-indolyl>-4-piperidone ethylene acetal 
• 140840-66-0 2-(1-Benzenesulfonyl-1H-indol-3-yl)-1-(2-benzyloxy-ethyl)-piperidin-4-one 
• 140840-63-7 7-(1-Benzenesulfonyl-1H-indol-3-yl)-8-(2-benzyloxy-ethyl)-1,4-dioxa-8-aza-spiro[4.5]decane 
• 140840-65-9 (E)-1-(1-Benzenesulfonyl-1H-indol-3-yl)-5-(2-benzyloxy-ethylamino)-pent-1-en-3-one 
• 140840-64-8 8-(2-Benzyloxy-ethyl)-7-(1H-indol-3-yl)-1,4-dioxa-8-aza-spiro[4.5]decane 

Downstream Products

• 911800-50-5 [2-(1-Benzenesulfonyl-1H-indol-3-yl)-1-(2-hydroxy-ethyl)-piperidin-4-yl]-acetic acid methyl ester 

Relevant academic research and scientific papers

Synthetic applications of 2-aryl-4-piperidones. VIII. Synthesis of methyl indolo[2,3-a]quinolizidin-2-acetate

The synthesis of methyl indolo[2,3-a]quinolizidin-2-acetate (21) from 1-hydroxyethyl-2-[1-(phenylsulfonyl)-3-indolyl]piperidine-4-acetate (16) by an intramolecular cyclization induced by KtBuO is described.