Jacoumaric acid, a new triterpene ester from Jacaranda caucana

Five New Taraxerene-Type Triterpenes from the Branch Barks of Davidia involucrata

“…Our continuing work led to the isolation of another five novel triterpenoids, namely davinvolunols A-B (1-2) and davinvolunones A-C (3-5), together with a known taraxerene triterpene, myricadiol (6) [14][15][16], and four known triterpene esters, 3β-O-trans-p-coumaroyl-2α-hydroxy-urs-12-en-28-oic acid (7) [17][18][19], 3β-O-cis-p-coumaroyl-2α-hydroxy-urs-12-en-28-oic acid (8), 3β-O-trans-p-feruloyl-2α-hydroxy-urs-12-en-28-oic acid (9), 3β-O-cis-p-feruloyl-2α-hydroxy-urs-12-en-28-oic acid (10) [19] ( Figure 1). Compounds 1-3 feature a contracted five-membered A-ring, whereas 4-5 are highly oxidized.…”

<i>In-vitro</i> and <i>In-vivo</i> Antiasthmatic Studies of <i>Ailanthus excelsa</i> Roxb. on Guinea Pigs

“…In Ayurveda it is used to remove the bad taste of mouth [2][3]. Ailanthus is used to cure wounds and skin eruptions as mentioned in traditional medicine [4].The root bark has been reported to possess cytotoxic and antitumor activity both in mice and in cell cultures [5]. Stem bark extracts showed potent antibacterial and antifungal activities [6].…”

A new β-lapachone derivative from Distictella elongata (Vahl) Urb.

“…1 The anti-cancer activity of some endemic Bignoniaceae, native from Cerrado regions, like Tabebuia avellanedae, Anemopaegma arvense; Zeyheria montana, Kigelia pinnata and Jacaranda caucana have been reported in the literature. [2][3][4][5][6] The Bignoniaceae family, represented by more than 100 genera and about 800 species, including Distictella elongata, is mainly tropical, with most accessions dispersed in tropical America. 7 This species occurs in Cerrado areas, within the states of Goiás, São Paulo and Minas Gerais.…”