1	CJE	Ethyl (2~{R})-2-methyl-3-oxidanylidene-butanoate	1.000
2	EAC	Ethyl 3-oxobutanoate	0.900
3	83I	Ethyl 4-chloranyl-3-oxidanylidene-butanoate	0.818
4	23W	Methyl 2-(hydroxymethyl)prop-2-enoate	0.800
5	1H1	Ethyl (3r)-4-cyano-3-hydroxybutanoate	0.750
6	L9I	Ethyl (2z)-2-hydroxyimino-3-oxidanylidene-butanoate	0.750
7	TJI	Ethyl 3-bromanyl-2-methyl-propanoate	0.727
8	CA1	Ethyl propionate	0.700
9	J69	Methyl 2-methylprop-2-enoate	0.700