A series of dibenzazepine tethered 3,5-disubstituted isoxazolines was synthesized and evaluated for their antimalarial activity usingP. falciparum3D7 strain. Further, the potent molecules were assessed againstP. falciparumD6, W2 and 7G8 strains.
In the title orthorhombic polymorph (space group Iba2), C17H13N, the dihedral angle between the benzene rings is 55.99 (10)° and the azepine ring adopts a boat conformation. In the crystal, molecules are linked by C—H⋯π contacts. The previously-reported polymorph [Yousuf et al. (2012 ▶). Acta Cryst. E68, o1101] crystallizes in the monoclinic system (space group P21/c) with two molecules in the asymmetric unit.
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