Two benzoylaminoacridinedione derivatives

The title compounds, 10-benzoylamino-1,2,3,4,5,6,7,8,9, 10-decahydroacridine-1,8-dione monohydrate, C(20)H(20)N(2)O(3).H(2)O, and 10-p-toluoylamino-1,2,3,4,5,6,7,8,9,10-decahydroacridine-1, 8-dione monohydrate, C(21)H(22)N(2)O(3).H(2)O, consist of partially hydrogenated acridine moieties with one benzoylamino substituent on the central ring. The acridine moiety suffers considerable deviations from planarity. The central ring in the acridine moiety is a boat, while the outer rings adopt sofa conformations.