@article{article71341a50,
title   = {New diterpenoids from leaves of Guarea macrophylla (Meliaceae)},
author = {Lago, João Henrique Ghilardi and Roque, Nidia Franca},
year = {2005},
doi = {10.1590/s0103-50532005000400024},
journal   = {Journal of the Brazilian Chemical Society}
}