The conformation of the title compound, C14H19N3S, is partially determined by an intra-molecular N-H⋯N hydro-gen-bond inter-action, although the N-H⋯N angle of 108° is quite small. The cyclo-hexyl-idene ring has a chair conformation and its mean plane is inclined to the benzene ring by 46.30 (8)°. In the crystal, mol-ecules are linked by pairs of N-H⋯S hydrogen bonds, forming inversion dimers, ...

In the title compound, C(14)H(18)N(2)O(3)S, the cyclo-hexene ring exhibits a distorted half-chair conformation and its mean plane makes a dihedral angle of 46.18 (8)° with the benzene ring. In the crystal, mol-ecules are linked via N-H⋯O, N-H⋯(O,O) and C-H⋯O hydrogen bonds, forming a three-dimensional network.

In crystal structure of the title compound, C(5)H(6)N(3)O(2) (+)·NO(3) (-)·H(2)O, inter-molecular N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds link the cations, anions and water mol-ecules into ribbons extending in [10]. Weak inter-molecular C-H⋯O hydrogen bonds further link these ribbons into sheets parallel to (3).

The title compound, C(11)H(11)NO, was synthesized by the reaction of 2-(bromo-meth-yl)benzonitrile and acetyl-acetone in the presence of KOH. In the crystal packing, mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds into chains running parallel to the b axis. Centrosymmetrically-related chains inter-act further through weak C-H⋯π inter-actions.

In the title compound, C20H14N2O, the phenyl ring is almost normal to the naphthalene ring system with a dihedral angle of 86.72 (9)°. The 4H-pyran ring fused with the naphthalene ring system has a boat conformation. In the crystal, mol-ecules are linked into a helical supra-molecular chain along the b axis via N-H⋯N hydrogen bonds. The chains are consolidated into a three-dimensional architect...

The crystal structure of the title compound, 2C(5)H(6)N(3)O(2) (+)·SO(4) (2-)·2H(2)O, displays a variety of N-H⋯O and O-H⋯O hydrogen bonds in which all potential donors and acceptors are involved. In the crystal, cations and anions are inter-connected, forming R(3) (3)(10) and R(2) (2)(8) ring motifs whereas the anions and water mol-ecules form R(2) (3)(10) rings, which develop in chains runnin...

Endothelin receptors (nomenclature as agreed by the NC-IUPHAR Subcommittee on Receptors [24]) are activated endogenous 21 amino-acid peptides endothelins 1-3 (endothelin-1, endothelin-2 and endothelin-3).