Diterpenoid Alkaloids from the Roots of Aconitum iochanicum
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DOI: 10.1007/s10600-020-03069-0
Abstract: Three new diterpenoid alkaloids, namely 1-N-deethyl-1,16-demethoxy-1,16-dihydroxy-N(19)-enaustroconitine A (1), 1-N-deethyl-1,16-demethoxy-1,16-dihydroxy-18-methoxy-N(19)-en-austroconitine A (2), and 1-N-deethyl-1,16-demethoxy-1,16-dihydroxyranaconidine (3), were isolated from the 80% ethanol extract of the roots of Aconitum iochanicum. Structural elucidation of all the compounds was performed… read more here.
Keywords: diterpenoid alkaloids; alkaloids roots; aconitum iochanicum; spectroscopy ... See more keywords
Potentially Cardiotoxic Diterpenoid Alkaloids from the Roots of Aconitum carmichaelii.
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DOI: 10.1021/acs.jnatprod.8b01039
Abstract: Aconitum carmichaelii is a traditional Chinese herbal medicine used for the treatment of pain and inflammation in the joints. However, the strong cardiotoxicity hinders its use. Although diester- and monoester-type diterpenoids, e.g., aconitine, mesaconitine, and… read more here.
Keywords: diterpenoid alkaloids; cardiotoxic diterpenoid; potentially cardiotoxic; alkaloids roots ... See more keywords
Baicalensines A and B, Two Isoquinoline Alkaloids from the Roots of Thalictrum baicalense.
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DOI: 10.1021/acs.orglett.0c02444
Abstract: Baicalensines A (1) and B (2) were isolated from the roots of Thalictrum baicalense and structurally characterized using spectroscopic data, 13C NMR calculations, and the CASE algorithm. Compound 1, representing a new class of alkaloid… read more here.
Keywords: alkaloids roots; two isoquinoline; thalictrum baicalense; baicalensines two ... See more keywords
Calycindaphines A–J, Daphniphyllum alkaloids from the roots of Daphniphyllum calycinum
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DOI: 10.1039/d1ra00107h
Abstract: Ten new Daphniphyllum alkaloids, calycindaphines A–J (1–10), were isolated from Daphniphyllum calycinum. Compound 1 possesses a unique C22 skeleton with the 5/8/7/5/5 ring system and might be a key intermediate for daphhimalenine A formation. read more here.
Keywords: daphniphyllum calycinum; daphniphyllum alkaloids; calycindaphines daphniphyllum; alkaloids roots ... See more keywords
Four new indole alkaloids from the roots of Isatis tinctoria.
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DOI: 10.1080/14786419.2020.1779716
Abstract: Chemical fractionation of the ethanolic extract of the roots of Isatis tinctoria L. (I. tinctoria) yielded fourteen indole alkaloids including four new ones, isatisindigoticanine L-N and isatindigoside M. Their structures were established on the basis… read more here.
Keywords: roots isatis; alkaloids roots; four new; indole alkaloids ... See more keywords
Steroidal alkaloids from the roots of Veratrum stenophyllum.
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DOI: 10.2139/ssrn.4314485
Abstract: Three new steroidal alkaloids, veratrasines A - C (1-3), along with ten known analogues (4-13) were isolated from the roots of Veratrum stenophyllum. Their structures were elucidated by NMR and HRESIMS data and comparison with the reported… read more here.
Keywords: roots veratrum; alkaloids roots; steroidal alkaloids; veratrum stenophyllum ... See more keywords