The roots of Eurycoma longifolia have been used in many countries of Southeast Asia to alleviate various diseases including malaria, dysentery, sexual insufficiency, and rheumatism. Although numerous studies have reported the pharmacological properties of E. longifolia, the mode of action of the anti-inflammatory activity has not been elucidated. Bioguided isolation of NF-kappa B inhibitors using an NF-kappa B-driven luciferase reporter gene assay led to the identification of a new quassinoid, eurycomalide C (1), together with 27 known compounds including 11 quassinoids (2-12), six alkaloids (13-18), two coumarins (19, 20), a squalene derivative (21), a triterpenoid (22), and six phenolic compounds (23-28) from the extract of E. longifolia. Evaluation of the biological activity revealed that C-19-type and C-20-type quassinoids, beta-carboline, and canthin-6-one alkaloids are potent NF-kappa B inhibitors, with IC50 values in the low micromolar range, while C-18-type quassinoids, phenolic compounds, coumarins, the squalene derivative, and the triterpenoid turned out to be inactive when tested at a concentration of 30 mu M. Eurycomalactone (2), 14,15 beta-dihydroklaieanone (7), and 13,21-dehydroeurycomanone (10) were identified as potent NF-kappa B inhibitors with IC50 values of less than 1 mu M.
Five new canthin-6-one alkaloids, 9,10-dimethoxycanthin-6-one, 10-hydroxy-9-methoxycanthin-6-one, 11-hydroxy- 10-methoxycanthin-6-one, 5,9-dimethoxycanthin-6-one and 9-methoxy-3-methylcanthin-5,6-dione were isolated from the bark and wood of Eurycoma longifolia, along with six known canthin-6-one alkaloids and two known beta-carboline alkaloids. Their structures were determined from spectroscopic data and other chemical evidence.
Hair dyeing process using a composition comprising at least one indol(in)e compound and a polycyclic aromatic compound containing at least ten carbon atoms
申请人:L'OREAL
公开号:US10292921B2
公开(公告)日:2019-05-21
The invention relates to a process for dyeing keratin fibers by treating said fibers with i) at least one aromatic compound comprising a hydrocarbon-based polycycle comprising at least 10 carbon atoms, at least one of the rings of which is aromatic, ii) at least one indol(in)e compound; optionally iii) at least one metal salt, iv) at least hydrogen peroxide or at least one hydrogen peroxide-generating system and v) at least one basifying agent; to a dye composition comprising ingredients i) and ii), and optionally iii) to v) as defined previously and to a kit comprising ingredients i) to v) as defined previously. This hair dyeing process makes it possible to obtain better colorings which are more uniform, chromatic and long-lasting and which do not impair the cosmetic properties of the keratin fibers, and prevents changing of the color associated with the presence of indol(in)e derivatives.
HAIR DYEING PROCESS USING A COMPOSITION COMPRISING AT LEAST ONE INDOLE OR INDOLINE COMPOUND, A METAL SALT, HYDROGEN PEROXIDE AND A BASIFYING AGENT
申请人:L'Oréal
公开号:EP2582351B1
公开(公告)日:2017-08-02
HAIR DYEING PROCESS USING A COMPOSITION COMPRISING AT LEAST ONE INDOL(IN)E COMPOUND AND A POLYCYCLIC AROMATIC COMPOUND CONTAINING AT LEAST TEN CARBON ATOMS
申请人:L'OREAL
公开号:US20180092822A1
公开(公告)日:2018-04-05
The invention relates to a process for dyeing keratin fibres by treating said fibres with i) at least one aromatic compound comprising a hydrocarbon-based polycycle comprising at least 10 carbon atoms, at least one of the rings of which is aromatic, ii) at least one indol(in)e compound; optionally iii) at least one metal salt, iv) at least hydrogen peroxide or at least one hydrogen peroxide-generating system and v) at least one basifying agent; to a dye composition comprising ingredients i) and ii), and optionally iii) to v) as defined previously and to a kit comprising ingredients i) to v) as defined previously. This hair dyeing process makes it possible to obtain better colorings which are more uniform, chromatic and long-lasting and which do not impair the cosmetic properties of the keratin fibres, and prevents changing of the colour associated with the presence of indol(in)e derivatives.
[EN] HAIR DYEING PROCESS USING A COMPOSITION COMPRISING AT LEAST ONE INDOLE OR INDOLINE COMPOUND, A METAL SALT, HYDROGEN PEROXIDE AND A BASIFYING AGENT<br/>[FR] PROCÉDÉ DE COLORATION CAPILLAIRE UTILISANT UNE COMPOSITION COMPRENANT AU MOINS UN INDOLE OU UN COMPOSÉ D'INDOLINE, UN SEL MÉTALLIQUE, UN PEROXYDE D'HYDROGÈNE ET UN AGENT ALCALINISANT
申请人:OREAL
公开号:WO2011157668A1
公开(公告)日:2011-12-22
The invention relates to a process for dyeing keratin fibers, in which said fibers are treated: ▪ with a composition (A) comprising i) one or more indole or indoline compounds; ii) one or more metal salts; iii) hydrogen peroxide or one or more systems that generate hydrogen peroxide; and then ▪ with a composition (B) comprising iv) one or more basifying agents. The invention also relates to a hair dyeing process for obtaining better colorations, which are more uniform, chromatic and remanent and which do not impair the cosmetic properties of keratin fibers.
[EN] HAIR DYEING PROCESS USING A COMPOSITION COMPRISING AT LEAST ONE INDOL(IN)E COMPOUND AND A POLYCYCLIC AROMATIC COMPOUND CONTAINING AT LEAST TEN CARBON ATOMS<br/>[FR] PROCÉDÉ DE COLORATION CAPILLAIRE UTILISANT UNE COMPOSITION CONTENANT AU MOINS UN COMPOSÉ D'INDOL(IN)E ET UN COMPOSÉ AROMATIQUE POLYCYCLIQUE COMPORTANT AU MOINS DIX ATOMES DE CARBONE
申请人:OREAL
公开号:WO2015181244A1
公开(公告)日:2015-12-03
The invention relates to a process for dyeing keratin fibres by treating said fibres with i) at least one aromatic compound comprising a hydrocarbon-based polycycle comprising at least 10 carbon atoms, at least one of the rings of which is aromatic, ii) at least one indol(in)e compound; optionally iii) at least one metal salt, iv) at least hydrogen peroxide or at least one hydrogen peroxide-generating system and v) at least one basifying agent; to a dye composition comprising ingredients i)and ii), and optionally iii) to v) as defined previously and to a kit comprising ingredients i) to v) as defined previously. This hair dyeing process makes it possible to obtain better colourings which are more uniform, chromatic and long-lasting and which do not impair the cosmetic properties of the keratin fibres, and prevents changing of the colour associated with the presence of indol(in)e derivatives.