Flavans of dragon’s blood from Dracaena draco and Dracaena tamaranae

Dragon's blood: Botany, chemistry and therapeutic uses

“…(2S)-4 ,5-dihydroxy-7-methoxy-8-methylflavan Camarda et al (1983), González et al (2000González et al ( , 2004 10-Hydroxy-11-methoxydracaenone Meksuriyen et al (1987), González et al (2000) 3,4,5-Trimethoxycinnamyl alcohol Ponpipom et al (1987), González et al (2000) Compound name Bioactivity References (2S)-4 ,7-Dihydroxy-8-methylflavan; 3-(4-hydroxy benzyl)-5,7-dimethoxychroman; 5,7-dihydroxy-3-(4-hydroxybenzyl)-chromone; 5,7-dihydroxy-3-(4-hydroxy benzyl)-chroman-4-one; 7-hydroxy-3-(4-hydroxybenzyl) chromone; isoliquiritigenin; liquiritigenin; xenognosin González et al (2000) Loureirin C (24) González et al (2000González et al ( , 2003 (2S)-3 ,7-Dihydroxy-4 -methoxy-8-methylflavan González et al (2000González et al ( , 2004 7-Hydroxy-3-(4-hydroxybenzyl)-8-methoxychroman;…”

Flavonoid oligomers from Chinese dragon’s blood, the red resins of Dracaena cochinchinensis

“…3 Chemical studies on the dragon's blood from the genus Dracaena (D. draco, D. cinnabari and D. loureiri) have revealed the occurrence of flavonoids, including flavan, flavone, chalcones, homoisoflavanes, and the oligomers of flavonoids. [4][5][6][7][8][9][10][11][12][13][14][15][16] Flavonoid oligomers, composing of one dihydrochalcone unit condensed with one or more chalcone, flavane or homoisoflavane units, [5][6][7] constituted the major identified components of dragon's blood from the genus Dracaena. Furthermore, a series of publications reported the natural product diversity of original plants of dragon's blood from the genus Dracaena.…”

Phytochemical profiles and inhibitory effect on free radical-induced human erythrocyte damage of Dracaena draco leaf: A potential novel antioxidant agent

“…Some phenolic compounds have been identified in D. draco resin (Camarda, Merlini, & Nasini, 1983;González, Léon, Sánchez-Pinto, Padrón, & Bermejo, 2000;González et al, 2004;Melo et al, 2007), including the 2,4,4 0 -trihydroxydihydrochalcone, 3-(4-hydroxybenzyl)-5,7-dimethoxychroman and 7-hydroxy-3-(4-hydroxybenzyl)-chromone, which were described for the first time in nature by González et al (2000). Recently, dracoflavylium was isolated and identified as the major red colourant in this resin (Melo et al, 2007).…”