Rapid and unambiguous assignment of proton-deficient N-acyl amidine indole alkaloid by a combination of calculation methods

Rapid and unambiguous assignment of proton-deficient N-acyl amidine indole alkaloid by a combination of calculation methods Pyrrovobasine, hybrid alkylated pyrraline monoterpene indole alkaloid pseudodimer discovered using a combination of mass spectral and NMR-based machine learning annotations Theoretical Investigation of the Biogenetic Pathway for Formation of Antibacterial Indole Alkaloids fromVoacanga africana Structural Elucidation by NMR Analysis Assisted by DFT Calculations of a Novel Natural Product from Conchocarpus Mastigophorus (Rutaceae) Stereochemical Study of the Super Large Tetrakis Alkaloid Alasmontamine A by Means of an Advanced Computational NMR Voacafrines A-N, aspidosperma-type monoterpenoid indole alkaloids from Voacanga africana with AChE inhibitory activity Density functional theory‐nuclear magnetic resonance‐validated full structure elucidation of theionbrunonine C, an unstable N‐oxide theionbrunonine from Mostuea brunonis Structure elucidation of an aspidofractinine-type monoterpene indole alkaloid from Melodinus reticulatus DFT-GIAO 1H and 13C-NMR Chemical Shifts Calculation of Uncaria longiflora Alkaloids Antibacterial Indole Alkaloids with Complex Heterocycles fromVoacanga africana