ChemInform Abstract: Isolation and Structural Determination of Phepropeptins A, B, C, and D, New Proteasome Inhibitors, Produced by Streptomyces sp.

ChemInform ◽  
2010 ◽  
Vol 33 (17) ◽  
pp. no-no
Author(s):  
Ryuichi Sekizawa ◽  
Isao Momose ◽  
Naoko Kinoshita ◽  
Hiroshi Naganawa ◽  
Masa Hamada ◽  
...  
Keyword(s):  
Proteasome Inhibitors ◽  
Structural Determination ◽  
Streptomyces Sp

scholarly journals Isolation and Structural Determination of Phepropeptins A, B, C, and D, New Proteasome Inhibitors, Produced by Streptomyces sp.

2001 ◽  
Vol 54 (11) ◽  
pp. 874-881 ◽  
Author(s):  
RYUICHI SEKIZAWA ◽  
ISAO MOMOSE ◽  
NAOKO KINOSHITA ◽  
HIROSHI NAGANAWA ◽  
MASA HAMADA ◽  
...  
Keyword(s):  
Proteasome Inhibitors ◽  
Structural Determination ◽  
Streptomyces Sp

scholarly journals Isolation and structural determination of a new macrolide, makinolide, from the newly isolated Streptomyces sp. MK-30

2012 ◽  
Vol 65 (6) ◽  
pp. 331-334 ◽  
Author(s):  
Shinya Kodani ◽  
Ayako Murao ◽  
Michitaka Hidaki ◽  
Kanna Sato ◽  
Naoto Ogawa
Keyword(s):  
Structural Determination ◽  
Streptomyces Sp

Structural Determination of Certain Novel ER Complexes

2004 ◽  
Author(s):  
Ya-Ling Wu ◽  
Geoffrey L. Greene
Keyword(s):  
Structural Determination

Phytochemical Constituents of Annona reticulata and their Cytotoxic Activity

2020 ◽  
Vol 17 (3) ◽  
pp. 206-210
Author(s):  
Ty Viet Pham ◽  
Thang Quoc Le ◽  
Anh Tuan Le ◽  
Hung Quoc Vo ◽  
Duc Viet Ho
Keyword(s):  
Cytotoxic Activity ◽  
Cell Lines ◽  
Structural Determination ◽  
Phytochemical Investigation ◽  
Ic50 Values ◽  
Phytochemical Constituents ◽  
First Time ◽  
Annona Reticulata

A phytochemical investigation of the leaves of Annona reticulata led to the isolation and structural determination of β-sitosterol (1), ent-pimara-8(14),15-dien-19-oic acid (2), ent-pimara- 8(14),15-dien-19-ol (3), quercetin (4), quercetin 3-O-α-L-arabinopyranoside (5), and a mixture of quercetin 3-O-β-D-galactopyranoside (6a) and quercetin 3-O-β-D-glucopyranoside (6b). Of these, compounds 2 and 3 were isolated from the genus Annona for the first time. Compound 3 showed strong cytotoxicity against SK-LU-1 and SW626 cell lines with IC50 values of 17.64 ± 1.07 and 19.79 ± 1.41 μg mL-1, respectively.

Structural Determination of the Hydrofullerene C60D36 by Neutron Diffraction

1998 ◽  
Vol 54 (3) ◽  
pp. 345-350 ◽  
Author(s):  
L. E. Hall ◽  
D. R. McKenzie ◽  
R. L. Davis ◽  
M. I. Attalla ◽  
A. M. Vassallo
Keyword(s):  
Neutron Diffraction ◽  
Density Function ◽  
Diffraction Data ◽  
Fourier Transformation ◽  
Structural Determination ◽  
Molecular Models ◽  
Reduced Density ◽  
C Nmr

A mixture of C60D36 with 24.5 \pm 4.5% C60 by weight has been analysed by neutron diffraction techniques. The diffraction data was converted to a reduced density function G(r) by Fourier transformation. The C60 component of the G(r) was subtracted out. This enabled a comparison for five molecular models of C60D36, with symmetries T, Th , S 6 and two D 3 d isomers, with the experimental G(r). This specimen of C60D36 was found to be best described by a T symmetry isomer, in agreement with 13C NMR and IR data for C60H36 [Attalla et al. (1993). J. Phys. Chem. pp. 6329–6331].

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