Betulinic acid derived hydroxamates and betulin derived carbamates are interesting scaffolds for the synthesis of novel cytotoxic compounds

J Wiemann, L Heller, V Perl, R Kluge, D Ströhl… - European Journal of …, 2015 - Elsevier
The betulinic acid-derived hydroxamates 5–18, the amides 19–24, and betulin-derived bis-
carbamates 25–28 as well as the carbamates 31–40 and 44–48 were prepared and …

Conformation of the oxalamide group in retro‐bispeptides: Three crystal structures

IL Karle, D Ranganathan, K Shah… - International Journal of …, 1994 - Wiley Online Library
We have determined the structures of a range of peptides having the oxalamide (‐NH‐CO‐
CO‐NH‐) unit located at their center. The oxalamide group has the trans conformation in two …

The structural study of acetohydroxamic and oxalodihydroxamic acids in DMSO solution based on the DFT calculations of NMR spectra

A Kaczor, LM Proniewicz - Journal of molecular structure, 2004 - Elsevier
The 1H and 13C NMR spectra of acetohydroxamic (aha) and oxalodihydroxamic (oxha)
acids were measured in DMSO-d6 solution. The atoms chemical shifts of chosen stable …

Ring‐substituted benzohydroxamic acids: 1H, 13C and 15N NMR spectra and NHOH proton exchange

J Schraml, M Tkadlecová, S Pataridis… - Magnetic …, 2005 - Wiley Online Library
Abstract NMR spectra (1H, 13C, 15N) of para‐and meta‐substituted benzohydroxamic acids
were studied in dry dimethyl sulfoxide solutions. The 13C chemical shifts were very close to …

Chelating dihydroxamic acids: study of metal speciation and co-ordination compounds with Ni 2+ and Cu 2+

J Świątek-Kozłowska, IO Fritsky, A Dobosz… - Journal of the …, 2000 - pubs.rsc.org
Solution (potentiometric, absorption, EPR) as well as solid state studies (X-ray, EPR,
magnetic susceptibility) have shown that the binding ability of oxalodihydroxamic acid …

Structure determination of dihydroxamic acids and their trimethylsilyl derivatives by NMR spectroscopy

J Schraml, M Kvíčalová, V Blechta… - Magnetic …, 2000 - Wiley Online Library
Homologous series of dihydroxamic acids [HONHCO (CH2) nCONHOH with n= 0, 1, 2, 3, 4
and 6] were prepared and trimethysilylated [1 (n) and 2 (n)]. The solution NMR spectra (1H …

Infrared absorption spectra of 2-(hydroxyimino) propanohydroxamic and oxalodihydroxamic acids isolated in argon matrices

A Kaczor, J Szczepanski, M Vala… - Physical Chemistry …, 2003 - pubs.rsc.org
For the first time, infrared spectra of 2-(hydroxyimino) propanohydroxamic acid (hpha) and
oxalodihydroxamic acid (oxha) isolated in argon matrices at 15–18 K have been recorded …

15N1H and 15N–13C couplings in 15N‐enriched dihydroxamic acids

J Schraml, P Cigler - Magnetic Resonance in Chemistry, 2008 - Wiley Online Library
Abstract 15N‐enriched dihydroxamic acids (HONHCO (CH2) nCONHOH, n= 0, 1, and 2)
were prepared and their spectra NMR (1H, 13C, 15N) recorded in dimethyl sulfoxide …

On interpretation of a missing spectral band; IR spectra of acidic salts of benzohydroxamic acid

R Řeřicha, V Blechta, L Soukupová, I Císařová… - … Acta Part A: Molecular …, 2005 - Elsevier
Using solid benzohydroxamic acid (BHA) as a model compound for its salts, a broad
absorption at 2730cm− 1 was generally agreed to represent the ν (OH) band of the OH⋯ ON …

[图书][B] Biochemical and structural studies of the FK506-and rapamycin-binding proteins (FKBPs)

RF Standaert - 1992 - search.proquest.com
FK506-and rapamycin-binding proteins (FKBPs)* constitute a family of receptors for the two
immunosuppressants, which block cytoplasmic signaling pathways in a variety of cells, most …