The stereochemistry around the N‐benzoylated indole moiety of indometacin was studied by restricting the rotation about the NC7′ and/or C7′C1′ bond. In the 2′,6′‐disubstituted ones, an atropisomericproperty was found and the atropoisomers were separated and isolated as stable forms. Their biological abilities to inhibit cyclooxygenase‐1 (COX‐1) and cyclooxygenase‐2 (COX‐2) were examined. Only the