Rauniticine-allo-oxindole B methanol monosolvate
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چکیده
منابع مشابه
Rauniticine-allo-oxindole B methanol monosolvate
The title penta-cyclic oxindole alkadoid, isolated from Uncaria longiflora, crystallizes as a methanol solvate, C(20)H(22)N(2)O(4)·CH(4)O. The five-membered ring comprising the indole fused ring is nearly planar [maximum atomic deviation = 0.031 (2) Å], whereas the five-membered ring having alphatic C atoms adopts an envelope shape (with the tertiary N atom representing the flap). The six-membe...
متن کاملRauniticine-allo-oxindole B and rauniticinic-allo acid B, new heteroyohimbine-type oxindole alkaloids from the stems of Malaysian Uncaria longiflora var. pteropoda.
Two new heteroyohimbine-type oxindole alkaloids, rauniticine-allo-oxindole B and rauniticinic-allo acid B, have been successfully isolated from the stems extract of Malaysian Uncaria longiflora var. pteropoda. The structures of the two new alkaloids were determined by spectroscopic analysis.
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IN THE TITLE COMPOUND [SYSTEMATIC NAME: (4R,4aS,7aR,12bS)-3-cyclo-propyl-meth-yl-4a,9-hy-droxy-7-oxo-2,3,4,4a,5,6,7,7a-octa-hydro-1H-4,12-methano-benzofuro[3,2-e]isoquinolin-3-ium bromide methanol monosolvate], C(21)H(26)NO(4) (+)·Br(-)·CH(3)OH, two of the three six-membered rings adopt chair conformations while the third, which contains a C=C double bond, adopts an approximate half-boat confor...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811016710