摘要:
The present invention provides a compound having an excellent inhibitory action on melanin production and being useful as a whitening agent, and a skin external preparation containing the compound. The whitening agent of the present invention comprises, as an active ingredient, a heterocyclic compound represented by formula (1) or a pharmacologically acceptable salt thereof:
wherein A is C 1-6 alkyl, C 5-6 cycloalkyl, benzyl, benzylcarbonyl, benzoyl, phenyl, pyridyl or pyrimidyl; Ra is H, C 1-6 alkyl, or C 2-6 alkenyl; " - - - " represents a single bond or a double bond whereinn = 1 or 2; Y is S or O; and R 3 and R 4 are each independently H, C 1-6 alkyl, hydroxy-C 1-6 alkyl, C 2-7 acyl, phenyl, pyridyl, pyrimidyl, etc.;with the proviso that at least one R 3 is a group other than C 1-3 alkyl in the case where: the hetero ring containing Y is a thiazoline ring; R 4 = Ra = H; X 1 = X 2 = CH; and either p = 0 or R 5 = C 1-6 alkyl.
摘要翻译:本发明提供了对黑素生成具有优异抑制作用并可用作增白剂的化合物和含有该化合物的皮肤外用制剂。 本发明的增白剂作为活性成分,含有式(1)表示的杂环化合物或其药理学上可接受的盐:其中A为C 1-6烷基,C 5-6环烷基,苄基,苄基羰基,苯甲酰基 ,苯基,吡啶基或嘧啶基; R a是H,C 1-6烷基或C 2-6烯基; “ - - - ”表示单键或双键,其中n = 1或2; Y为S或O; R 3和R 4各自独立地为H,C 1-6烷基,羟基-C 1-6烷基,C 2-7酰基,苯基,吡啶基,嘧啶基等;条件是至少一个R 3为 在含有Y的杂环是噻唑啉环的情况下是C 1-3烷基以外的基团; R 4 = Ra = H; X 1 = X 2 = CH; p = 0或R 5 = C 1-6烷基。
摘要:
The present invention provides cosmetic use of a pyrimidylpyrazole compound represented by formula (1) or a pharmacologically acceptable salt thereof:
wherein, R 1 , R 3 , R 4 , and R 6 are each independently C 1-3 alkyl; and R 2 and R 5 are each independently a hydrogen atom or C 1-3 alkyl.
摘要翻译:本发明提供由式(1)表示的嘧啶基吡唑化合物或其药学上可接受的盐的化妆品用途:其中,R 1,R 3,R 4和R 6各自独立地为C 1-3烷基; R 2和R 5各自独立地为氢原子或C 1-3烷基。
摘要:
The present invention provides a compound having an excellent inhibitory action on melanin production and being useful as a whitening agent, and a skin external preparation containing the compound. The whitening agent of the present invention comprises, as an active ingredient, a heterocyclic compound represented by formula (1) or a pharmacologically acceptable salt thereof: wherein A is C 1-6 alkyl, C 5-6 cycloalkyl, benzyl, benzylcarbonyl, benzoyl, phenyl, pyridyl or pyrimidyl; Ra is H, C 1-6 alkyl, or C 2-6 alkenyl; " - - - " represents a single bond or a double bond whereinn = 1 or 2; Y is S or O; and R 3 and R 4 are each independently H, C 1-6 alkyl, hydroxy-C 1-6 alkyl, C 2-7 acyl, phenyl, pyridyl, pyrimidyl, etc.;with the proviso that at least one R 3 is a group other than C 1-3 alkyl in the case where: the hetero ring containing Y is a thiazoline ring; R 4 = Ra = H; X 1 = X 2 = CH; and either p = 0 or R 5 = C 1-6 alkyl.
摘要:
A method for evaluating an ultraviolet radiation protection effect of a measurement sample applied on an application member includes a first step of selecting a first filter for measuring a spectral transmittance of the measurement sample before photodeterioration in a predetermined wavelength range by emission of light including ultraviolet radiation from a light source according to a preset light emission condition, and measuring the spectral transmittance, a second step of switching the first filter to a second filter for ultraviolet irradiation and causing the photodeterioration of the measurement sample through exposure to the ultraviolet radiation for a predetermined time after the measurement by the first step, and thereafter, switching the second filter to the first filter and measuring the spectral transmittance, and a third step of evaluating the ultraviolet radiation protection effect based on a change over time in the spectral transmittance obtained by repeating the second step over a predetermined time or a predetermined number of times.
摘要:
A method for evaluating an ultraviolet radiation protection effect of a measurement sample applied on an application member includes a first step of selecting a first filter for measuring a spectral transmittance of the measurement sample before photodeterioration in a predetermined wavelength range by emission of light including ultraviolet radiation from a light source according to a preset light emission condition, and measuring the spectral transmittance, a second step of switching the first filter to a second filter for ultraviolet irradiation and causing the photodeterioration of the measurement sample through exposure to the ultraviolet radiation for a predetermined time after the measurement by the first step, and thereafter, switching the second filter to the first filter and measuring the spectral transmittance, and a third step of evaluating the ultraviolet radiation protection effect based on a change over time in the spectral transmittance obtained by repeating the second step over a predetermined time or a predetermined number of times.
摘要:
An invisible information embedding apparatus for embedding invisible information at a position in an obtained image includes an image analysis unit configured to obtain object information and positional information of an object included in the image, an embedding target image determining unit configured to determine whether the image is an embedding target based on the object information obtained by the image analysis unit, and an image synthesizing unit configured to combine the image with the invisible information based on the determination result of the embedding target image determining unit.