Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Hans Fritz"'
Autor:
Hans Fritz, Hanspeter Sauter, Paul Hug, Sven-Olov Lawesson, Tammo Winkler, B. S. Pedersen, S. Scheibye, Enno Logemann
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 87:525-534
By a new thiation reagent,1, 4, 11 the dimer of p-methoxyphenylthionophosphine sulfide, 3, a series of thioamides have been prepared in almost quantitative yields from the corresponding amides, Carbon-13 NMR spectra of tertiary thioamides of formic,
Autor:
G. Rihs, Lothar Knothe, Hans Fritz, Dieter Hunkler, Kai Exner, Gerhard Fischer, Horst Prinzbach
Publikováno v:
European Journal of Organic Chemistry. 2000:743-762
The chances for intramolecular imine/ene ( azetidines), diazene/ene ( 1,2-diazetidines), diazeneoxy/ene ( 1,2-diazetidine oxides) and diazenedioxiene ( 1,2-diazetidine dioxides) [2+2]photocycloadditions and for the isolation of the respective photopr
Autor:
Maria A. Juliano, Hans Fritz, Isabel de Fátima Correia Batista, Claudio A. M. Sampaio, Misako U. Sampaio, Ennes A. Auerswald, Maria Luiza Vilela Oliva, Sonia A. de Andrade
Publikováno v:
Immunopharmacology. 45:145-149
Kunitz type Bauhinia ungulata factor Xa inhibitor (BuXI) was purified from B. ungulata seeds. BuXI inactivates factor Xa and human plasma kallikrein (HuPK) with K i values of 18.4 and 6.9 nM, respectively. However, Bauhinia variegata trypsin inhibito
Autor:
Klaus Scheumann, Jürgen Wörth, Emmerich Sackers, Martin Bertau, Horst Prinzbach, Jürgen Leonhardt, Hans Fritz, Dieter Hunkler
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1195-1210
For two- to six-fold functionalised dodecahedranes (7–10) the chances for selective variation of their substitution have been explored, as part of a program directed at homododecahedranes and at highly unsaturated dodecahedranes, ultimately C20 ful
Autor:
Emmerich Sackers, Andreas Weiler, Hans Fritz, Johann-Peter Melder, Dieter Hunkler, Horst Prinzbach, Klaus Weber
Publikováno v:
Research on Chemical Intermediates. 22:667-702
Methodological alternatives for the preparation of highly strained, highly pyramidalized dodecahedrene 2 (Estr=87.3 kcal mol−1; ϕ=43.5°, MM2) and 1,16-dodecahedradiene 3 (Estr=105.3 kcal mol−1; ϕ=42.9°, MM2) have been explored, protection/dep
Autor:
Aparecida S. Tanaka, Norlene R. Bueno, Misako U. Sampaio, Claudio A. M. Sampaio, Hans Fritz, Ennes A. Auerswald, Isabel de Fátima Correia Batista, Maria Luiza Vilela Oliva
Publikováno v:
Immunopharmacology. 32:62-66
The action of two Bowman-Birk and several plant Kunitz-type inhibitors were studied on trypsin, chymotrypsin, plasma kallikrein and factor XII. The primary structure of some of them was completely defined. The results showed that the Bowman-Birk type
Autor:
Grety Rihs, Jaroslav Kalvoda, Ivan Earnest, Hans Fritz, Eric Francotte, Manfred Mutter, Christoph Sigel, Fritz Raschdorf, Marcel J. J. Blommers
Publikováno v:
Helvetica Chimica Acta. 76:1539-1563
The 8-amino-5,6,7,8-tetrahydronaphth-2-oic acid (1), 8-(aminomethyl)-5,6,7,8-tetrahydronaphth-2-oic acid (2), and 8-(aminomethyl)naphth-2-oic acid (3) were synthesized in their protected forms as turn-inducing dipeptide mimics.Two of them (2 and 3) w
Publikováno v:
ChemInform. 22
We describe the condensation in solution of a fully protected helix model peptide to a cyclic peptide template including a new turn-inducing mimic to obtain a 4-helix bundle protein-like TASP. This approach allows the total synthesis of chemically an
Publikováno v:
ChemInform. 24
Autor:
Hans Fritz, Bulusu A. R. C. Murty, Wolf-Dieter Fessner, Paul R. Spurr, Georg Lutz, Rolf Pinkos, Dieter Hunkler, Horst Prinzbach
Publikováno v:
ChemInform. 23
In bissecododecahedra-1,10(11)-dienes, the syn-periplanar and unusually proximate arrangement of the π bonds is responsible for extraordinary physical properties such as strong throughspace homoconjugation, low oxidation potentials, and a special re