Racemic 5-(4-chlorophenyl)-2-methoxyindeno[1′,2′:2,3]pyrido[5,6-d]pyrimidine-4,6(3H,5H)-dione–dimethylformamide (1/1) and (5RS,5aSR,10bSR)-10b-hydroxy-2-methoxy-5-(4-methoxyphenyl)-5a,10b-dihydroindeno[1′,2′:2,3]pyrido[5,6-d]pyrimidine-4,6(3H,5H)-dione–dimethylformamide (1/1): chains of rings generated by N—H...O and C—H...π(arene) hydrogen bonds | Publicación