Two new phthalate derivatives from Nepeta clarkei (Labiatae)

Abstract

Two new phthalates bis(2-ethylundecyl)phthalate (1) and bis(2-ethyltridecyl)phthalate (2) have been isolated from the chloroform-soluble portion of the whole plant of Nepeta clarkei along with one known compound β-amyrin. The structures of the two new compounds and β-amyrin were assigned on the basis of their ¹H and ¹³C NMR spectra including 2D NMR techniques such as COSY, HMQC, and HMBC experiments and compared with the literature data.

Keywords:

• Labiatae
• Nepeta clarkei
• phthalates
• triterpene

Acknowledgement

The authors wish to thank the Higher Education Commission (HEC), Government of Pakistan, for providing financial support for the current study under the National Research Program for Universities (NRPU).