@article{article43322c1d,
title   = {Fast and efficient synthesis of pyranol[3,2-c]quinolines Catalyzed by Niobium(V) Chloride},
author = {Silva Filho, Luiz Carlos da and Lacerda Júnior, Valdemar and Constantino, Maurício Gomes and Silva, Gil Valdo José da},
year = {2008},
doi = {10.1055/s-2008-1067186},
journal   = {Synthesis : Journal of Synthetic Organic Chemistry}
}