A facile rearrangement of pyrroloindoline derivative to pyrroloquinoline: A new analogues of duocarmycins
作者:Naim H. Al-Said、Khaled Q. Shawakfeh、Baha A. Hammad
DOI:10.1002/jhet.5570450513
日期:2008.9
Free-radical generated at C-7 position of indole derivative bearing N-(3′-chloroallyl) group prompted a regioselective intramolecular cyclization to furnish pyrroloindolinederivative, through the more favorable 5-exo-trig cyclization mode. The pyrroloindoline compound smoothly rearranged to pyrroloquinoline under mild conditions.
Cyclization of Free Radicals at the C-7 Position of Ethyl Indole–2-carboxylate Derivatives: an Entry to a New Class of Duocarmycin Analogues
作者:Naim Al-Said、Khaled Shawakfeh、Wasim Abdullah
DOI:10.3390/10121446
日期:——
generated at the C-7 position of ethyl indole-2-carboxylates bearing N-allyl and propargylic groups triggered intramolecular cyclizations to furnish a new class of Duocarmycinanalogues, formal ethyl pyrrolo[3,2,1-ij]quinoline-2-carboxylate derivatives, through the less favorable 6-endo-trig cyclization mode.