Microwave-assisted synthesis of 3-substituted indoles via intramolecular arene–alkene coupling of o-iodoanilino enamines
摘要:
A generally applicable and high-yielding protocol for the synthesis of 3-substituted indole derivatives is described. Key features include microwave-assisted intramolecular arene alkene coupling of o-iodoanilino enamines, and expedient synthesis of o-iodoanilino enamine substrates employing N,O-acetal TMS ethers, which could be conveniently derived from the corresponding amides. Our unique procedure seems quite efficient and provides an easy access to a variety of 3-substituted indoles as privileged structure for a wide range of biological targets. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis of <scp>L</scp>‐6‐Chloropyrroloindoline of Chloptosin Cyclohexapeptide
作者:Young‐Ah Kim、So‐Yeop Han
DOI:10.1081/scc-200026636
日期:2004.1.1
Abstract Chloptosin is an apoptosis‐inducing dimeric cyclohexapeptide. Enantioselective synthesis of L‐6‐chloropyrroloindoline, as the key chiral synthon of the cyclohexapeptide of chloptosin, was successfully achieved starting from 3‐chloroaniline by utilizing Fischer indole/Schöllkopf protocol and oxidative cyclization of resulting L‐6‐chlorotryptophan.