2-(2-methoxypyrido<1,2-b>-as-triazin-3-io)-1-phenyl-1-ethenolate

2-isopropylidene-4-pentenoic acid methyl ester

6-ethanesulfonyl-2,3-dimethoxy-2H-benzo[1,4]oxazine

5-t-butylthio-3-methoxy-6-phenylpyridazine