@article{article2855ceb9, title = {Detailed 1H and 13C NMR structural assignment of ent-polyalthic acid, a biologically active labdane diterpene}, author = {Kovatch, Pedro Y. and Ferreira, Alexsandro E. and Ghizonni, Guilherme M. L. and Ambrosio, Sergio R. and Crotti, Antonio Eduardo Miller and Heleno, Vladimir Constantino Gomes}, year = {2022}, doi = {10.1002/mrc.5217}, journal = {Magnetic Resonance in Chemistry} }