Bargustanine (I), belonging to a new type of isoquinoline alkaloids, has been isolated from the phenolic fraction of the total alkaloids from the roots of Berberis vulgaris L.Its structure has been established by chemical and spectral methods.
Karimov, A.,Yusupov, M. M.,Shakirov, R.
p. 35 - 38
(2007/10/02)
Studies on tetrahydroisoquinolines. XXX. A synthesis of mixed tetrahydroisoquinoline dimers via p-quinol acetates
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Hara,Murakata,Hoshino,Umezawa,Iitaka
p. 1627 - 1637
(2007/10/02)
BIOMIMETIC OXIDATIONS OF BENZYLISOQUINOLINE ALKALOUDS. I. THE PEROXIDASE AND ASCORBIC OXIDASE-CATALYSED OXIDATION
The enzyme peroxidase behaves as a mixed-function oxidase toward the benzylisoquinoline alkaloid nucleus, giving rise to various phenoxy radicals depending on the substrate.These give either C(4) hydroxylation or C(5') hydroxylation and cyclisation to an aporphine, or cleavage of the C(1)-C(9) bond.
Canonica, Luigi,Nali, Micaela,Rindone, Bruno,Tollari, Stefano,Marchesini, Augusto
p. 1 - 6
(2007/10/02)
NEW SYNTHESIS OF ISOQUINOLINE ALKALOIDS, THALIFOLINE, CORYPALLINE, AND CHERYLLINE
Isoquinoline alkaloids, thalifoline, corypalline, and cherylline, were synthesised by application of the cyclisation reaction of β-phenyl-ethyl isocyanate to N-methylisoquinoline lactam with Magic Methyl and the regioselective cleavage reaction of aromatic methoxyl groups with methionine and methanesulphanic acid.