1	4OZ	Methyl N-(2,3-dihydroxybenzoyl)-O-formyl-L-serinate	1.000
2	TD1	O-[(2s)-2-amino-3-hydroxypropanoyl]-N-(2,3-dihydroxybenzoyl)-L-serine	0.720
3	VEC	Methyl N-(3-hydroxybenzoyl)-N-methylglycinate	0.714
4	ZUZ	Methyl N-(cyclohexanecarbonyl)glycinate	0.700