72254-58-1Relevant articles and documents
Synthesis of Genotoxic Heterocyclic Amines Trp-P-1 and Trp-P-2
Hibino, Satoshi,Sugino, Eiichi,Kuwada, Takeshi,Ogura, Naoki,Sato, Kohichi,Choshi, Tominari
, p. 5917 - 5921 (2007/10/02)
Trp-P-1 (1a) and Trp-P-2 (1b) possessing a pyridoindole system have been newly synthesized.The key reaction step in the synthetic sequence has been the thermal electrocyclic reaction of the 1-azahexa-1,3,5-triene system 3 involving the indole bond derived from 2-vinylindoles 4. 2-Vinylindole 4a has been derived from N-(benzenesulfonyl)indole (5) in a four-step sequence. 2-Vinylindole 4b has been synthesized by two routes using either ethoxymethylidene Meldrum's acid (6b) or diethyl ethoxymethylidenemalonate (10) as Michael acceptors to the 2-lithio-N-(benzenesulfonyl)indole.