Assertion: new alkaloid | /r/HasProperty | isolated
Facets:
value: from the leaves
type: LOCATION
value: originally
type: MANNER
Source sentences:
text: Another investigation of Mitragyna speciosa has been carried out and three new alkaloids have been isolated from the leaves, viz., 3,4,5,6-tetradehydromitragynine (331), mitralactonal (332) and mitrasulgynine (333), the latter being notable for possessing an unprecedented sulfonate function .
text: Three new 2-quinolinone alkaloids, zanthosimuline, huajiaosimuline, simulanoquinoline, along with nine known compounds, N-acetylanonaine, chelerythrine, norchelerythrine, bocconoline, 8-methoxy-N-methylflindersine, skimmianine, N-acetylnornuciferine, arnottianamide and decarine, were isolated and characterized from the root bark of Zanthoxylum simulans.
text: They were originally isolated from the roots of the bindweed Calystegia sepium and given the names calystegine A3 (a 1,2,3-trihydroxynortropane)
text: A new alkaloid, (+)-13-epicorynoline, was isolated from the whole plant of Corydalis bungeana.
text: Another investigation of Mitragyna speciosa has been carried out and three new alkaloids have been isolated from the leaves, viz., 3,4,5,6-tetradehydromitragynine (331), mitralactonal (332) and mitrasulgynine (333), the latter being notable for possessing an unprecedented sulfonate function .