4-(2-Chloro-3-pyridyl)-4-oxobutyronitrile

3-(3-cyanobenzoyl)thiophene

3-(4-Fluorobenzoyl)thiophene

3-(3-Chloro-4-fluorobenzoyl)thiophene

3-(2,4-Dichlorobenzoyl)thiophene

3-Bromo-5-(2-ethoxycarbonylbenzoyl)pyridine

Butyl 5-(1,3-dioxolan-2-yl)-2-thienyl ketone

5-(1,3-Dioxolan-2-yl)-2-thienyl nonyl ketone

Cycloheptyl 5-(1,3-dioxolan-2-yl)-2-thienyl ketone

5-(1,3-Dioxolan-2-yl)-2-thienyl isopropyl ketone

5-(1,3-Dioxolan-2-yl)-2-thienyl 1-ethylpentyl ketone