(3Ξ)-O4,O5-isopropylidene-O7-trityl-D-ribo-3,6-anhydro-2-deoxy-heptonic acid ethyl ester

(E)-ethyl 3-(2-(4-carbamoyl-2-methylphenyl)-1-(4-chloro-2-methoxyphenyl)-1H-pyrrol-3-yl)acrylate

ethyl β-2-furyl-γ-oxo-2-furancrotonate

1-(2-ethoxy-2-oxo-1-(triphenylphosphonio)ethyl)-6-(2-ethoxy-2-oxoethylidene)-4-tritylcyclohexa-2,4-dien-1-olate

4,9-dihydro-6,7-dimethylfurazano<3,4-b>quinoxaline