1	BL2	N-(tert-butoxycarbonyl)-L-leucine	1.000
2	ZQN	N-(tert-butyloxycarbonyl)-valine	0.824
3	OEE	~{tert}-butyl ~{N}-[(2~{S})-2-methyl-4-oxidanyl-1-oxidanylidene-pent-4-en-2-yl]carbamate	0.778
4	AR5	N~2~-(tert-butoxycarbonyl)-L-arginine	0.750