NMR spectral assignments of a new chlorotryptamine alkaloid and its analogues from Acacia confusa

A new chlorotryptamine alkaloid, N-chloromethyl-N,N-dimethyltryptamine, was isolated from a methanol extract of the Chinese shrub Acacia confusa Merr., together with its known hallucinogenic analogues, N-methyltryptamine, N,N-dimethyltryptamine and N,N-dimethyltryptamine-N-oxide. The new compound was an artefact of the isolation conditions. The complete H-1 and C-13 NMR assignments for these compounds were carried out using H-1, C-13, DEPT, gCOSY, gHSQC and gHMBC NMR experiments. Copyright (C) 2007 John Wiley & Sons, Ltd.