Two new indole alkaloids having unusual skeletons were isolated from Yunnan Kopsia arborea. Kopsiyunnanine L has a novel 2,3,4,5-tetrahydro-1H-benzazepine skeleton rearranged from a Strychnos-type monoterpenoid indole alkaloid. Kopsiyunnanine M is a new type of bisindole alkaloid consisting of two Strychnos-type alkaloids. (C) 2016 Elsevier Ltd. All rights reserved.