@misc{misc9567e304, title = {Rmn 'ANTPOT.13 C' of epoxide derivatives in the assignment of the stereochemistry of methyl ent-pimara-8,15-dien-19-oate}, author = {Cruz, F G and Roque, N F}, year = {1990}, booktitle = {Reuniao Anual da Sociedade Brasileira de Quimica} }