Consistent supra-molecular motif of <i>C</i>(7) O-H⋯O hydrogen-bonded chains and different local symmetries in three iso-indole-4-carb-oxy-lic acid derivatives.

ABSTRACT: The syntheses and structures of (3aRS,4RS,9aSR)-3-oxo-2-(2-phenyl-eth-yl)-2,3,3a,4,9,9a-hexa-hydro-1H-benzo[f]iso-indole-4-carb-oxy-lic acid, C₂₁H₂₁NO₃ (I), (3aRS,4RS,9aSR)-3-oxo-2-(propan-2-yl)-2,3,3a,4,9,9a-hexa-hydro-1H-benzo[f]iso-indole-4-carb-oxy-lic acid, C₁₆H₁₉NO₃ (II) and (4RS)-3-oxo-2-phenyl-2,3,4,9-tetra-hydro-1H-benzo[f]iso-indole-4-carb-oxy-lic acid, C₁₉H₁₅NO₃ (III), are described. Compound (I) crystallizes with two mol-ecules in the asymmetric unit. In the extended structures of (I), (II) and (III) the mol-ecules are linked by O_c-H⋯O_i (c = carb-oxy-lic acid, i = indol

SUBMITTER: Alekseeva KA 

PROVIDER: S-EPMC12810269 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature