| 摘要 |
Heterocyclic compounds(I) are prepared by the reaction between compd.(II) and compd.(III), where X, Y, and Z = oxygen or sulfur atom; R1 = C1 - C4 alkyl gp.; R2 = tetracyclic ring compd. containing O or S atom; phenyl gp., C1 - C2 alkyl gp., halogen atom. haloalkyl gp., alkoxy gp., nitro gp., or phenyl gp. substituted with methylene dioxy gp.; R3 = C5 - C7 cycloalkyl, cycloalkenyl, cyclic ring compd. containing O, S, or N atom, or cyclic ring compd. substituted methyl gp. containing O, S, or N atom.
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