Synthesis of [ 1 O-Substituted-6H, 7 H-indolo[2,3-c ]isoquinolin- 5-one-6-yl]acetyl-3,5-disubstituted-pyrazoles/pyrazolones and 5-[ 1 O-Substituted-6H, 7 H-indolo[2,3-c ]isoquinolin- 5-one-6-yl]methyl-1,3,4-oxadiazol-2-thiones - S P. HIREMATH (1995)