1	DPZ	3,5-diaminophthalhydrazide	1.000
2	APZ	4-aminophthalhydrazide	0.929
3	32X	5-aminoisoquinolin-1(4h)-one	0.733
4	495	4-chlorophthalazin-1(2h)-one	0.733
5	U8N	4-oxidanyl-2~{H}-isoquinolin-1-one	0.733
6	4FT	Phthalazine	0.714