1	QFD	(3s,6s)-3-{[4-(hydroxymethoxy)phenyl]methyl}-6-[(4-hydroxyphenyl)methyl]piperazine-2,5-dione	1.000
2	KEQ	(3~{S},6~{S})-3-[(4-hydroxyphenyl)methyl]-6-[(4-methoxyphenyl)methyl]piperazine-2,5-dione	0.962
3	1ED	(3s,6s)-3-benzyl-6-(4-hydroxybenzyl)piperazine-2,5-dione	0.885
4	YTT	(3s,6s)-3,6-bis(4-hydroxybenzyl)piperazine-2,5-dione	0.852
5	1G7	(3s,6s)-3-(3,4-dihydroxybenzyl)-6-(4-hydroxybenzyl)piperazine-2,5-dione	0.821
6	KE2	(3~{S},6~{S})-3-[(4-hydroxyphenyl)methyl]-6-[(3-methyl-4-oxidanyl-phenyl)methyl]piperazine-2,5-dione	0.821
7	KE5	(3~{S},6~{S})-3-[(4-hydroxyphenyl)methyl]-6-[(2-methyl-4-oxidanyl-phenyl)methyl]piperazine-2,5-dione	0.821
8	KEH	(3~{S},6~{S})-3-[(4-hydroxyphenyl)methyl]-6-[(3-iodanyl-4-oxidanyl-phenyl)methyl]piperazine-2,5-dione	0.821
9	KEW	(3~{S},6~{S})-3-[(3-chloranyl-4-oxidanyl-phenyl)methyl]-6-[(4-hydroxyphenyl)methyl]piperazine-2,5-dione	0.821
10	Q47	3-bromo dicyclotyrosine	0.821
11	R2H	3-fluoro dicyclotyrosine	0.821
12	1G4	(3s,6s)-3,6-bis(4-hydroxybenzyl)piperazin-2-one	0.815
13	KEB	(3~{S},6~{S})-3-[(3,5-dimethyl-4-oxidanyl-phenyl)methyl]-6-[(4-hydroxyphenyl)methyl]piperazine-2,5-dione	0.793
14	KEZ	3-acetylene dicyclotyrosine	0.793
15	OUC	(3~{S},6~{S})-3-[(2,6-dimethyl-4-oxidanyl-phenyl)methyl]-6-[(4-hydroxyphenyl)methyl]piperazine-2,5-dione	0.793