642492-75-9

Upstream product

• 642492-74-8 toluene-4-sulfonic acid 2-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-2-tert-butoxycarbonylamino-ethyl ester 

Downstream Products

• 642492-76-0 {2-amino-1-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-ethyl}-carbamic acid tert-butyl ester 
• 642492-84-0 (1-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-2-{2-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-2-oxo-acetylamino}-ethyl)-carbamic acid tert-butyl ester 
• 642492-83-9 {2-[2-(1-acetyl-6-bromo-1H-indol-3-yl)-2-oxo-acetylamino]-1-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-ethyl}-carbamic acid tert-butyl ester 
• 642492-86-2 3,5-bis-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-5,6-dihydro-1H-pyrazin-2-one 
• 642492-77-1 {2-[2-(6-bromo-1H-indol-3-yl)-2-oxo-acetylamino]-1-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-ethyl}-carbamic acid tert-butyl ester 
• 642492-81-7 N-{2-benzylamino-2-[6-bromo-1-(toluene-4-sulfonyl)-1H-indol-3-yl]-ethyl}-2-(6-bromo-1H-indol-3-yl)-2-oxo-acetamide 

Relevant academic research and scientific papers

Synthesis of marine bisindole alkaloids, hamacanthins A and B through intramolecular transamidation-cyclization

The total syntheses of the marine bisindole alkaloids, hamacanthins were achieved by a novel transamidation-cyclization of N-(2-aminoethyl)-2- oxoethanamides to 3,5- and 3,6-disubstituted piperazinones.