Fig. 3. 2D in Glycoglycerolipids from the leaves of Perilla frutescens (L.) Britton (Labiatae) and their anti-inflammatory activities in lipopolysaccharide-stimulated RAW264.7 cells

Fig. 3. 2D NMR spectra of compounds 1, 2 and 3 and structure of compounds 1. (A) Partial HMQC NMR spectrum of compound 1 (CDCl3, 600 MHz), see Supplementary Figs. 6 for the complete HMQC NMR spectrum of compound 1; (B) TCOSY NMR spectrum of compound 1 (CDCl3, 600 MHz); (C) HMBC NMR spectrum of compound 1 (CDCl, 600 MHz); (D) Structure of compound 1. (E) Key 1H–1H TCOSY (─) and HMBC (→) correlations in compound 2. (F) Key 1H–1H TCOSY (─) and 3 HMBC (→) correlations in compound 3.