W-2900A

Elkapin

Etozolin

Etozoline

[3-Methyl-4-oxo-5-(1-piperidinyl)thiazolidin-2-ylidene]acetic acid ethyl

[3-Methyl-4-oxo-5-(1-piperidinyl)thiazolidin-2-ylidene]acetic acid ethyl ester