Structure-Based Design of Type II Inhibitors Applied to Maternal Embryonic Leucine Zipper Kinase
摘要:
A novel Type II kinase inhibitor chemotype has been identified for maternal embryonic leucine zipper kinase (MELK) using structure-based ligand design. The strategy involved structural characterization of an induced DFG-out pocket by proteinligand X-ray crystallography and incorporation of a slender linkage capable of bypassing a large gate-keeper residue, thus enabling design of molecules accessing both hinge and induced pocket regions. Optimization of an initial hit led to the identification of a low-nanomolar, cell-penetrant Type II inhibitor suitable for use as a chemical probe for MELK.
This work describes the synthesis, anti-Candida, and molecular modeling studies of eighteen new glucosyl-1,2,3-triazoles derived from eugenol and correlated phenols. The new compounds were characterized by combined Fourier Transform Infrared, 1H and 13C nuclearmagneticresonance and spectroscopy of high-resolution mass spectrometry. The synthesized compounds did not show significant cytotoxicity against
2-Aryltetraazaindenes for treating cardiac insufficiency
申请人:Merck Patent Gesellschaft mit Beschrankter Haftung
公开号:US04477454A1
公开(公告)日:1984-10-16
2-Aryltetraazaindenes of the formula ##STR1## wherein --A-- is --N.dbd.CH--CH.dbd.N-- or --CH.dbd.N--N.dbd.CH--, Ar is unsubstituted phenyl or phenyl mono-, di- or tri-substituted by hydroxyl, mercapto, dialkylamino, trifluoromethyl and/or --Z--R groups, Z is --O--, --S-- or --SO-- and R is alkyl, alkenyl, alkynyl or cyanomethyl, the alkyl, alkenyl and alkynyl groups each having up to 5 C atoms, and their physiologically acceptable salts, exhibit blood pressure, myocardial contraction, and anti-ulcer activities.
Copper supported β-cyclodextrin grafted magnetic nanoparticles as an efficient recyclable catalyst for one-pot synthesis of 1-benzyl-1H-1,2,3-triazoldibenzodiazepinone derivatives via click reaction
efficient and recoverable copper catalyst was prepared by the immobilization of Cu into β-cyclodextrin covalently attached to magnetic nanoparticles (denoted as [Cu@β-CD@SPIONs]). A novel and one-pot synthetic approach was introduced for the synthesis of novel 1-benzyl-1H-1,2,3-triazoldibenzodiazepinone derivatives through a clickreaction using [Cu@β-CD@SPIONs] as a green catalyst. The magnetic recoverable
2-Aryt-imidazopyridine der allgemeinen Formel 1.
worin
-A=B- (a) -CH=N- oder (b) -N=CH-,
Ar einen Phenylrest, der im Fall (a) durch eine oder zwei Alkinyloxy-, Cyanmethoxy-, Carboxymethoxy- und/oder Alkyloxycarbonylmethoxygruppen substituiert ist und durch eine oder zwei zusätzliche Hydroxy-, Alkyloxy-, Alkenyloxy- undioder Alkinyloxy- gruppen substituiert sein kann, oder der im Fall (b) durch eine bis drei Hydroxy-, Mercapto- und oder -Z-R-Gruppen substituiert ist,
Z -0-, -S- oder -SO- und
R Alkyl, Alkenyl, Alkinyl, Hydroxyalkyl, Cyanmethyl, Carboxymethyl oder Alkyloxycarbonylmethyl bedeuten,
wobei die Alkyl-, Alkenyl-, Alkinyl- und Hydroxyalkylgruppen jeweils bis zu 5 C-Atome besitzen, worin jedoch im Fall (b) der Phenylrest nur dann durch Hydroxy- oder Methoxygruppen substituiert ist, wenn er gleichzeitig noch mindestens einen anderen jeweils davon verschiedenen Substituenten trägt,
sowie ihre physiologisch unbedenklichen Salze, zeigen Wirsungen auf den Blutdruck und auf die Herzkraft.