Flavonoids fromHerissantia tiubae.

Abstract

Four known flavones, 5-hydroxyauranetin, araneosol, calycopterin and sarothrin, were isolated from the aerial parts of Herissantia tiubae (K. Schum) Brizicky (Malvaceae). Their structures were identified by the use of spectroscopic methods such as IR, UV, and mainly nuclear magnetic resonance, which included two-dimensional techniques ( 1 H-1 H COSY, NOESY, HETCOR, and HMBC). This is the first reported isolation of these compounds from the genus Herissantia.

Modulation of drug resistance in staphylococcus aureus by a kaempferol glycoside from herissantia tiubae (malvaceae)

“…The first phytochemical investigations of H. tiubae resulted in the isolation of several classes of compounds, including kaempferol glycosides (Silva et al, 2004), triterpenes (Silva et al, 2008) and polyoxygenated/polymethoxylated flavones (Silva et al, 2005(Silva et al, , 2009.…”

Coumarins and flavones from the fruit and root extracts of Micromelum integerrimum

“…The individual EtOAc extracts of the roots and fruit of M. integerrimum were separated by various chromatographic techniques to obtain a new compound (1) together with 23 known compounds (2-24), 6-(3-methyl-2-oxobutyroyl)-7-methoxycoumarin (2) (Li et al 2016), phebalosin (3) (Ito et al 1987), murralongin (4) (Talapatra et al 1973), osthenon (5) (Ito et al 1987), microminutin (6) (Suthiwong et al 2014), minutuminolate (7) (Lekphrom et al 2016), murrangatin acetate (8) (Ito et al 1987), (-)-murrangatin (9) (Ito et al 1990), 2′-Oethylmurrangatin (10) (Choudhary et al 2002), minumicrolin (11) (Ito et al 1990), hopeyhopin (12) (Dominguez et al 1977), dehydrogeijerin (13) (Dominguez et al 1977), isoscopoletin (14) (Shafizadeh et al 1970), scopoletin (15) (Cassady et al 1979), citropten (16) (Gray et al 1978), micromelin (17) (Cassady et al 1979), dihydromicromelin B (18) (Das et al 1994), acetyldihydromicromelin A (19) (Das et al 1994), flindulatin (20) (Collins et al 2004), gossypetin 3,7,8,4′-tetramethylether (21) (Wollenber et al 2008), 5,7-dihydroxy-3,4′,6,8-tetramethoxyflavone (22) (Silva et al 2005), 5,7-dihydroxy-3,8,4′-trimethoxyflavone (23) (Tandon et al 1977) and acerosin (24) (Greenham et al 2001).…”