Spectroscopic data of new cassane diterpenoids from the root bark of .

The data are related to the research article entitled ''New cassane diterpenoids from the root bark of Erythrophleum suaveolens'' (Jacques et al., 2019). The article provides method of purification and data to determine structure of two novel cassane diterpenoid amines: 3β-hydroxy-3-methylbutanoyloxy-6α-hydroxy-nor-cassamine (1) and 3β-hydroxy-3-methylbutanoyloxy-erythrosuamine (2).

Three novel non-nitrogenous cassane diterpenoids from (Guill. et Perr.) Brenan (Fabaceae).

During our research to contribute to the elucidation of the chemical composition of the root bark of , six non-nitrogenous cassane diterpenoids () were isolated and identified. Of these secondary metabolites, three have never been previously described: Cassan-13,15-dien-3-oxo-17-oic acid (), Cassan-15-en-[7,17]-γ-lactone () and 6-hydroxy-cassamic acid (). The other are known but, never isolated from the root barks of (Fabaceae): Cassan-13,15-dien-17-oic acid (), hydroxycassamic acid methyl esther () and cassamic acid ().