A Thermodynamic Study on Thermochromism of 3-(1,2-diethyl-3-indolyl)- 3-[4-(diethylamino)-2-methylphenyl]phthalide

threo-Diethyl 2-ethyl-2-hy­droxy-3-(4-methyl­benzene­sulfonamido)­succinate

The asymmetric unit of the title compound, C(17)H(25)NO(7)S, contains two independent mol-ecules, which are enanti-omers forming a hydrogen-bonded dimer associated with two R(2) (2)(7) patterns. In each mol-ecule, one ethyl group from the two available ethyl ester functional groups is disordered. In one mol-ecule, the ethyl group of the ester function from an α-carb-oxy-lic acid is positionally...

Three-dimensional quantitative structure activity relationship approach series of 3-Bromo-4-(1-H-3-Indolyl)-2, 5-Dihydro-1H-2, 5- Pyrroledione as antibacterial agents

The use of quantitative structure–activity relationships, since its advent, has becomeincreasingly helpful in understanding many aspects of biochemical interactions in drug research.This approach was utilized to explain the relationship of structure with biological activity ofantibacterial. For the development of new fungicides against, the quantitative structural–activityrelationship (QSAR) an...

Diethyl 2-{[(4-meth­oxy-3-pyrid­yl)amino]­methyl­idene}malonate

In the title mol-ecule, C(14)H(8)N(2)O(5), the amino group is involved in the formation an intra-molecular N-H⋯O hydrogen bond. In the crystal, weak inter-molecular C-H⋯O and C-H⋯N hydrogen bonds link the mol-ecules into ribbons along the b axis.

1,1-Diethyl-3-(4-meth­oxy­benzo­yl)thio­urea

In the title compound, C(13)H(18)N(2)O(2)S, the 4-meth-oxy-benzoyl fragment is approximately planar [maximum deviation = 0.057 (2) Å] and twisted relative to the thio-amide fragment, forming a dihedral angle of 86.62 (6)°. The two Csp(2)-Nsp(2) bonds in the thio-urea unit differ significantly in length [1.327 (2) and 1.431 (2) Å]. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into ch...

3 2 1 0 4 3 2