A New Languidulane Diterpenoid from Salvia mexicana var. mexicana

Molecules

Bernardo Antonio Frontana-Uribe¹  Martha Verónica Escárcega-Bobadilla¹  Rosa Estrada-Reyes¹  José Antonio Morales-Serna¹  Manuel Salmón¹ 

[1] Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 México D.F., México

关键词: Salvia mexicana;    Labiatae;    diterpene;    languidulanes;    NMR;   

DOI  :  10.3390/molecules16108866

来源: mdpi

【 摘 要 】

From the aerial parts of Salvia mexicana var. mexicana, two C-10 epimers (α and β) of salvimexicanolide were isolated. Our interpretation of the data, especially the ¹³C NMR, led us to conclude that the previously described ¹³C-NMR spectrum of the α-epimer was not accurately assigned and it actually corresponds to the β-epimer. The structures proposed for the salvimexicanolides were verified by means of NOESY experiments. Dugesin B, arbutin, naringenin and the mixture of oleanolic and ursolic acids were also isolated from this Salvia spp.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.