1-[(1S,2R)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-cyclopropyl]-3-((E)-3-methoxy-acryloyl)-urea

1-[(1S,2R)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-cyclopropyl]-1H-pyrimidine-2,4-dione

(S)-3-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-pent-4-enoic acid ethyl ester