Abstract
Aspidosperma pyrifolium Mart., Apocynaceae, is a species popularly known with the popular Brazilian names of “pereiro” and “pau-pereiro.” It is a native tree from the Caatinga biome, and the flowers frequently attract bees. The species is known for the presence of plumeran indole alkaloids. In this study, the alkaloidal fraction of A. pyrifolium flowers resulted in the characterization of eighteen plumeran indolic alkaloids via ultra-performance liquid chromatography coupled with diode array and quadrupole time-of-flight mass spectrometry. Four of these alkaloids were isolated, and their structures were established by different spectroscopic methods. The novel indole alkaloid N-formyl-15-methoxy-aspidofractinin, in addition to the known alkaloids pyrifoline, aspidospermine, and 15-methoxy-aspidospermine, was identified from the analyzed plant.
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Funding
This work was financially supported by grants from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq grant no. 425493/2018-0 and 301935/2018-1), Fundação de Amparo à Ciência e Tecnologia de Pernambuco (FACEPE-PRONEM APQ-0741106/2014), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
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SPC and TMSS performed experiments and wrote the manuscript, SPC, TMSS, ALBM, TMGS, and CAC interpreted data and prepared and provided the key materials. All the authors have read the final manuscript and approved the submission.
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Cabrera, S.P., da Silva, T.M.G., Monteiro, A.L.B. et al. Plumeran Indole Alkaloids From Aspidosperma pyrifolium Flowers. Rev. Bras. Farmacogn. 30, 346–349 (2020). https://doi.org/10.1007/s43450-020-00048-y
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DOI: https://doi.org/10.1007/s43450-020-00048-y