Constituents of the Whole Herb of Clinoponium laxiflorum

Abstract

The isolation and identification of twenty‐two components (including one new compound) from the whole herb of Clinoponium laxiflorum (Hay) Matsum (Labiatae) are described. Their structures were determined on the basis of spectral and chemical transformation. One new compound is methyl rosmarinate. The other twenty‐one compounds include three steroids (α‐spinasterol, α‐spinasteryl‐3‐O‐β‐D‐glucopyranoside, and β‐sitosteryl‐3‐O‐β‐glucopyranoside), three triterpenes (oleanolic acid, ursolic acid, and betulinic acid), nine flavonoids (didymin, apigenin‐7‐O‐β‐glucopyranoside, luteolin‐7‐O‐β‐glucopyranoside, isosakuranetin, narigenin, apigenin, luteolin, narirutin, and hesperidin), three lignolic acids (rosmarinic acid, 3‐(3,4‐dihydroxyphenyl)lactic acid, and caffeic acid), and three phenols (4‐hydroxybenzaldehyde, 3,4‐dihydroxybenzaldehyde, and 3,4‐dihydroxybenzoic acid).

Effect of cytokinins on shoots proliferation and rosmarinic and salvianolic acid B production in shoot culture of Dracocephalum forrestii W. W. Smith

“…All analyzed samples of shoot cultures presented a similar qualitative profile comprising nine peaks, four (1, 2, 6, 8) of which were identified by comparing their data (retention times-Rt, UV-Vis absorption spectra, and MS/MS fragmentation patterns) with those of reference standards. Other compounds for which standards were not available were identified by analysis their MS/MS spectral characteristic and confirmed with literature data (Catarino et al 2015;Carlotto et al 2015;Wang et al 2012;Lecompte et al 2010;Liu et al 2007a;Kuo et al 2000). The properties of the examined compounds and representative HPLC-UV chromatograms are presented in Table 2 and Fig.…”

“…Fragmentation of molecular ion leads to ions at m/z 179 and 135, corresponding to the deprotonated form of caffeic acid and its residue after decarboxylation. Compound 9 was classified as methyl rosmarinate based on the literature data (Lecompte et al 2010;Kuo et al 2000). Phenolic acids such as caffeic acid, chlorogenic acid and rosmarinic acid and their derivatives are widespread in the Lamiceae family (Petersen 2013).…”

Phytochemical Investigation of Perovskia abrotanoides

“…The broad exchangeable signal around d = 5 and the singlet at d = 6.48 are due to two phenolic and one aromatic proton, respectively. An isolated spin system with 1 H-1 H COSY cross peaks between Chemical structures of cirsimaritin(9), hesperidin (10) and rosmarinic acid(11).…”

Antioxidant Properties and Phytochemical Characteristics of Extracts fromLactuca indica

“…Figure 5a presents the HPLC chromatogram of the EtOAc fraction; six phenolic compounds (1-6) were isolated and characterized. According to the mass and NMR analyses, compounds 1-6 were identified as protocatechulic acid (1) (20), methyl p-hydroxybenzoate (2) (21), caffeic acid (3) (20), 3,5dicaffeoylquinic acid (4) ( 22), luteolin 7-O-β-glucopyranoside (5) (20), and quercetin 3-O-β-glucopyranoside (6) (9). Figure 5b shows the standard calibration curves (peak area vs concentrations) of quercetin 3-O-β-glucopyranoside, ranging from 5 to 100 µg/mL.…”