1
Published 2009
American Chemical Society
Subjects: ...Heterocyclic Compounds / chemical synthesis...

2
Published 1987
American Chemical Society
Subjects: ...Heterocyclic Compounds / chemical synthesis...

3
Published 2005
American Chemical Society
Subjects: ...Heterocyclic Compounds / chemical synthesis...

4
Published 1991
American Chemical Society
Subjects: ...Heterocyclic Compounds / chemical synthesis...