The proton pump inhibitors omeprazole and lansoprazole and its acid-activated derivative AG-2000, which are potent and specific inhibitors of urease of Helicobacter pylori (K. Nagata, H. Satoh, T. Iwahi, T. Shimoyama, and T. Tamura, Antimicrob. Agents Chemother. 37:769-774, 1993), inhibited the growth of H. pylori. The growth was inhibited not only in urease-positive clinical isolates but also ...

The asymmetric unit of the title compound, C18H18ClN3OS·C2H5OH, comprises a pyrazoline derivative and an ethanol solvent mol-ecule. In the mol-ecule of the pyrazoline derivative, the pyrazole ring adopts an envelope conformation with the C atom bearing the eth-oxy-phenyl substituent as the flap. The dihedral angle between the benzene rings is 74.22 (7)°. The eth-oxy group is coplanar with the a...

Peano differentiability is a notion of higher order differentiability in the ordinary sense. H. W. Oliver gave sufficient conditions for the mth Peano derivative to be a derivative in the ordinary sense in the case of functions of a real variable. Here we generalize this theorem to functions of several variables.

The title compound, C(17)H(29)NO, is an important hindered phenol derivative. The asymmetric unit contains two mol-ecules. Molecules inter-act through O-H⋯N hydrogen bonds to form a tetramer arranged around a twofold rotation axis.

The title compound, C(19)H(28)O(4), is a new androstane steroid derivative. In the crystal, mol-ecules are linked along the a axis by inter-molecular O-H⋯O hydrogen bonds.

The title compound, C(12)H(16)O(5), is a derivative of β-(3,4-dihydroxy-phen-yl)-α-hydr-oxy acid. The crystal packing is stabilized by inter-molecular O-H⋯O hydrogen bonds.

in this paper, we prove the existence and uniqueness results to the random fractional functional differential equations under assumptions more general than the lipschitz type condition. moreover, the distance between exact solution and appropriate solution, and the existence extremal solution of the problem is also considered.

In this work we characterize the escape of orbits from phase space Riemann–Liouville (RL) fractional standard map (fSM). The RL-fSM, given in action–angle variables, is derived equation motion kicked rotor when second order derivative substituted by a RL α. Thus, RL-fSM parameterized K and α∈(1,2] which control strength nonlinearity derivative, respectively. Indeed, for α=2 initial conditions, ...

In the title compound, C(11)H(13)NO(3)S, a benzothia-zine derivative, the heterocycle adopts a sofa conformation. In the crystal, weak C-H⋯O hydrogen bonds connect the mol-ecules into a three-dimensional network.

In the title compound, C(2)H(6)N(2)O, a hydrazine derivative, the asymmetric unit contains two mol-ecules with similar geom-etries. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds.