In the title compound, C(13)H(14)N(2)O(3)S, the methyl 2-(3-formyl-thio-ureido)acetate fragment and the phenyl ring adopt an E configuration. The mol-ecule exhibits an intra-molecular N-H⋯O hydrogen bond, which completes a six-membered ring. The crystal packing is stabilized by inter-molecular N-H⋯S contacts, generating a two-dimensional hydrogen-bonding network.

In the title compound, C13H15NO2, the acetate group [C-C(=O)-O] makes a dihedral angle of 62.35 (13)° with the mean plane of the indole ring system [maximum deviation = 0.011 (3) Å]. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming helical chains propagating along [010].

The title compound, C(12)H(12)N(2)O(3), was synthesized by condensation of methyl amino-acetate with 3-trichloro-acetyl-indole. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains parallel to the b axis. The chains are further connected into a three-dimensional network by N-H⋯O hydrogen bonds involving the indole N atom. In the molecule, the indole skeleton is n...

The title compound, C(11)H(12)N(2)O(6), crystallizes with two independent mol-ecules in the asymmetric unit, which differ slightly in conformation. The dihedral angle between the amide O=C-N plane and the attached benzene ring is 19.5 (3)° in one mol-ecule and 23.4 (3)° in the other. In the crystal, the two independent mol-ecules are connected alternately by N-H⋯O hydrogen bonds, forming a chai...

The title compound, C(11)H(10)N(2)O(4)·H(2)O, has a zwitterionic structure, in which the benzimidazole ring system is planar, with a maximum deviation of 0.007 (3) Å. The carbox-yl/carboxyl-ate groups adopt a trans configuration. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds involving the hydr-oxy/oxide O atoms link the mol-ecules into a one-dimensional chain. These chains are ...