The title compound, C17H20N4O2, was prepared by the reaction between 1,3-di-amino-propane and isatoic anhydride in water. The carbonyl O atoms are involved in intra-molecular hydrogen bonding with the amine group and inter-molecular hydrogen bonding with an amide H atom of an adjacent mol-ecule. In the crystal, pairs of N-H⋯O hydrogen bonds link mol-ecules into inversion dimers and further N-H⋯...

The title compound, C(24)H(29)NO(7), is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The coumarin ring system and the fused pyran ring make a dihedral angle of 10.46 (8)°. A short intra-molecular N-H⋯O hydrogen bond between the amino group and the vicinal carbonyl group generates an S(6) ring. Inter-molecular C-H⋯O inter-actions contribute to the sta...

The title compound, C(20)H(16)N(2)O(2), was synthesized by the reaction of 2-hydroxy-benzohydrazide with diphenyl-methanone. The dihedral angle between the phenyl rings is 76.28 (11)°. The amino H atom is involved in an intra-molecular N-H⋯O hydrogen bond. In the crystal structure, the hydr-oxy groups and carbonyl O atoms form inter-molecular O-H⋯O hydrogen bonds, which link the mol-ecules into...

In the title compound, C32H26Cl2F2N2O2, the tetra-hydro-pyridine ring adopts a distorted boat conformation. The chlorophenyl rings are inclined to one another by 55.2 (1)°, while for the fluorophenyl rings the dihedral angle is 80.7 (1)°. The amino group and carbonyl O atom are involved in an intra-molecular N-H⋯O hydrogen bond. In the crystal, weak C-H⋯O, C-H⋯F and C-H⋯Cl inter-actions link th...

In the title compound, C(13)H(17)NO, the dihedral angle between the aryl ring and the amino-acryl-aldehyde mean plane [N-C=C-C=O; maximum deviation = 0.0144 (9) Å] is 53.43 (4)°. There is an intra-molecular N-H⋯O hydrogen bond involving the amine and carbonyl groups. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, forming chains propagating along [001].

A camphor-derived sulfonimine with a conjugated carbonyl group, oxoimine 1 (O2SNC10H13O), reacts with amino acids (glycine, L-alanine, L-phenylalanine, L-leucine) to form a compound O2SNC10H13NC10H14NSO2 (2) which was characterized by spectroscopic means (MS and NMR) and supported by DFT calculations. The product, a single diastereoisomer, contains two oxoimine units connected by a -N= bridge, ...

The title compound [systematic name: [(1α,14α,16β)-20-ethyl-8,9,10-trihy-droxy-1,14,16-tri-meth-oxy-aconitan-4-yl 2-amino-benzoate], C30H42N2O8, a natural C19-diterpenoid alkaloid, possesses an aconitane carbon skeleton with four six-membered rings and two five-membered rings. The fused ring system contains two chair, one boat, one twist-boat and two envelope conformations. Intra-molecular N-H⋯...

Streptozotocin (STZ) (2-deoxy-2-({[methyl(nitroso)amino]carbonyl}amino)-β-D-glucopyranose) is a naturally occurring diabetogenic compound, produced by the soil bacterium streptomyces achromogenes, that exhibits broad spectrum of antibacterial properties. Streptozotocin functions as a DNA synthesis inhibitor in both bacterial and mammalian cells. In mammalian cells, the actual mechanism and meta...

The core moiety of ritonavir (2S, 3S, 5S)-5-(tertbutyloxycarbonyl)amino-2-amino-3-hydroxy-1,6-diphenylhexane (7) on condensation with oxirane of carbazole (8) in isopropyl alcohol at reflux and deprotected with mineral acid gave compound 10. Coupling of compound 10 with carbamate amino acid (11a-15c) in the presence of EDAC.HCl and HOBt at room temperature gave ritonavir analogues containing ca...