In the title compound, C16H17NO3S, a thio-phene derivative with amino phenyl, acetyl, methyl and ethyl carboxyl susbtituents attached to a central thio-phene ring, the phenyl and thio-phene rings form a dihedral angle of 36.92 (9) Å. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, which forms an S(6) ring motif.

In the title compound, C15H19NO4, all three carbonyl groups are syn-oriented with respect to the methine group attached to the phenyl ring. The mean planes of the phenyl ring and ethyl carbamate moiety form a dihedral angle of 65.2 (1)°. In the crystal, mol-ecules related by translation in [100] are linked into chains via N-H⋯O hydrogen bonds.

PURPOSE To synthesize a new series of 5-substituted-3-methylsulfanyl-1H-pyrazole-4-carboxylic acid ethyl esters for their analgesic and anti-inflammatory activity. METHODS The title compound synthesized by reacting the amino group of 5-amino-3-methylsulfanyl-1H-pyrazole-4-carboxylic acid ethyl ester with acid anhydrides, acid chlorides and phenyl dithiocarbamates. The synthesized compounds we...

Heteroaromatization of ethyl 2-cyano-4-oxo-2-(2-oxo-2-arylethyl)-4-arylbutanoates 3a,b with ammonium acetate gave ethyl 2,6-diarylisonicotinates 4a,b. Treatment of the latter with acetonitrile afforded novel beta-oxoalkanonitriles 6a,b. Reactions of 6a,b with phenyl hydrazine and hydroxylamine gave the corresponding pyridyl aminopyrazoles 8a,b and pyridyl aminoisoxazoles 10a,b, respectively.

When meperidine (Demerol) was shown to possess marked analgesic properties (Eisleb and Schaumann, 1939) and thus became the first potent synthetic analgesic drug, the importance of the 1,4-substituted piperidine nucleus in providing analgesic activity became apparent. Many modifications of this basic chemical structure have been synthesized and studied pharmacologically in an attempt to achieve...

There are two independent mol-ecules in the asymmetric unit of the title compound, C(20)H(23)N(3)O, in which the dihedral angles between the phenyl ring of the phenyl-ethyl-amino group and the benzimidazole system are 73.98 (15) and 15.93 (16)°. The crystal packing features N-H⋯O and N-H⋯N hydrogen bonds.

Acatalasemia and hypocatalasemia mice had decreased levels of mercury in the lung and blood and increased levels in the liver following exposure in vivo to metallic mercury vapor (1.4 mg/m3 for 2 hours). The decreased uptake of mercury was roughly proportional to the decrease in catalase activity in these organs. Acatalasemia mice injected with ethyl alcohol showed a decrease in the mercury con...

ZrP2O7 nanoparticles (NPs) as an efficient catalyst have been used for the preparation of 1,6-diamino-2- oxo-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile derivatives via one-pot coupling of hyrazine hydrate, ethyl cyanoacetate, malononitrile and aromatic aldehydes under reflux conditions in ethanol. Using this method we obtained low reaction times, easy isolation of the targeted molecules, e...

Cytochrome P-450 (P-450)-catalyzed oxidation of 2,6-dimethyl-4-phenyl-3,5-pyridinedicarboxylic acid diethyl ester gives rise to 2,6-dimethyl-4-phenyl-3,5-pyridinedicarboxylic acid monoethyl ester and to 2-hydroxymethyl-6-methyl-4-phenyl-3,5-pyridinedicarboxylic acid diethyl ester, identified in this work. A pyridine hydroxymethyl diester of the sort of the latter compound is novel; under acidic...