1,2,3,4-四氢咔唑

乙酰氯

1-(9-acetyl-2,3,4,9-tetrahydro-4aH-carbazol-4a-yl)-4-methyl-1,2,4-triazolidine-3,5-dione

乙酸酐

acetic acid-(cyclohexylidene-phenyl-hydrazide)