CN100506800C - 四氢嘧啶-2-酮衍生物及其应用 - Google Patents
四氢嘧啶-2-酮衍生物及其应用 Download PDFInfo
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Abstract
式[I]化合物或其盐在产生凉爽感觉中的应用,其中R1和R2独立选自氢或卤原子;羟基、氰基、硝基、巯基、羰基、砜和羧基;或任选取代的烷基、烯基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、氨基、甲硅烷氧基、酯基和杂环基,条件是如果R1为2-羟基苯基,则R2不为3-硝基苯基。
Description
发明领域
本发明涉及当与人体接触时能够产生凉爽感觉的化合物,此类化合物广泛应用于许多领域,特别是口腔卫生用品和个人卫生用品及食品。
发明背景
已知四氢嘧啶-2-酮化合物可用于药物制剂。例如,US3,821,221公开了许多这样的化合物,以及它们作为中枢神经系统兴奋剂或抑制剂的效果。据认为这些化合物作为潜在的精神活性药物具有治疗应用价值。
对于四氢嘧啶-2-酮衍生物的药理学研究结果发现,icilin(又名AG-3-5,化学名称1-[2-羟基苯基]-4-[2-硝基苯基]-1,2,3,6-四氢嘧啶-2-酮)当与研究人员的粘膜(鼻孔、嘴唇、眼睑)发生接触时会产生凉爽感觉,摄入时亦然(参见Wei等,J.Pharm.Pharmacol.1983,35:110-112)。
已知会产生凉爽感觉的化合物有薄荷醇(2-异丙基-5-甲基环己醇),薄荷醇作为添加剂业已广泛应用于食品、口腔卫生用品等。薄荷醇的使用主要因为在嘴里能产生凉爽感,同时具有令人愉快的薄荷气味。这种凉爽感是薄荷醇作用于人体能够感知热、冷刺激的神经末梢的结果。薄荷醇尤其能活化神经末梢上的冷感受器。然而,由于薄荷醇的强烈薄荷气味和相对挥发性,其用途受到了限制。
业已发现icilin同样能够产生和薄荷醇相同的凉爽效果。较之薄荷醇icilin有许多的优点,例如,因它不具麻醉剂的性质,故它更有效,急性毒性更低。因为其没有薄荷醇的气味且不易被皮肤吸收,所以在药理学的许多应用方面,icilin被认为是特别有用的化合物。然而,作为不为药物应用,icilin未被公开为薄荷醇的代用品。
本发明定义
按照本发明的第一个实施方案,提供式[I]化合物或其盐在产生凉爽感觉中的用途:
其中R1、R2独立选自氢或卤原子;羟基、氰基、硝基、巯基、羰基、砜和羧基;或任选取代的烷基、烯基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、氨基、甲硅烷氧基、酯基和杂环基,条件是如果R1为2-羟基苯基,则R2不为3-硝基苯基。
按照本发明的第二个实施方案,提供式[IV]化合物或其盐:
其中X为氢或卤原子,或烷基或烷氧基;Y为羟基或烷氧基,n为0、1、2或3;条件是如果n为1且Y为羟基,则X为烷基或羟基。
本发明的第三个实施方案提供一种包含会产生凉爽感觉的式[I]化合物或其盐的组合物:
其中R1和R2独立选自氢或卤原子;羟基、氰基、硝基、巯基、羰基、砜和羧基;或任选取代的烷基、烯基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、氨基、甲硅烷氧基、酯基和杂环基。
本发明的第四个实施方案提供一种赋予人体凉爽感觉的方法,该方法包括给予、最好是口服给予人式[I]化合物:
其中R1和R2独立选自氢或卤原子;羟基、氰基、硝基、巯基、羰基、砜和羧基;或任选取代的烷基、烯基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、氨基、甲硅烷氧基、酯基和杂环基,条件是如果R1为2-羟基苯基,则R2不为3-硝基苯基。
发明详述
除非在说明书下文另有说明,否则烷基是指线性或环状的饱和烃,烃可以为直链或支链,并且优选含有至多20个碳原子。同样,烯基是指线性或环状、直链或支链不饱和烃,其优选含有至多20个碳原子。如果烷基是线性的,则优选含有1-10个碳原子,更优选含有1-6个碳原子。合适的实例包括甲基、乙基、丙基、丁基、戊基和己基及其异构体。例如,C4基团可以是正丁基、异丁基、仲丁基或叔丁基。如果烷基是环状的,则优选含有5-10个碳原子,例如可以是环戊基、环已基、环庚基、萘烷或金刚烷基。
烷氧基和烷硫基是指分别经氧原子或硫原子连接的烷基,其中烷基部分如上定义。
卤代烷基是指如上定义的烷基被至少一个卤原子取代。烷基优选含有1-6个碳原子,优选被1-6个卤原子取代,更优选被1-3个卤原子取代。典型的实例包括被1-6个选自氯、溴、氟的卤原子取代的甲基、乙基和丙基。优选被这些卤原子中的1-3个卤原子取代的甲基,例如三氟甲基和三氯甲基。
芳基是指包含至少一个芳环的烃,可以含有5-18个、优选6-14个、更优选6-10个、最优选6个碳原子。典型的芳基包括苯基、萘基、菲基、蒽基、茚基、薁基、亚联苯基和芴基,特别优选的芳基包括苯基、萘基、芴基,最优选苯基。
芳氧基和芳硫基是指分别经氧原子或硫原子健合的芳基,其中芳基部分如上定义。
氨基是指具有通式-NR′R"的基团,其中R′和R"独立选自氢原子和烷基。当R′和R"为烷基时,优选含有1-10个、更优选含有1-4个碳原子。可能的氨基包括-NH2、甲氨基(即-NHMe)、乙氨基、丙氨基、丁氨基、仲丁氨基、叔丁氨基、戊氨基、己氨基、庚氨基、辛氨基、硬脂氨基、二甲氨基(即-NMe2)、二乙氨基、二丙氨基、二丁氨基、二仲丁氨基、二叔丁氨基、二戊氨基、二己氨基、二庚氨基、二辛氨基、二硬脂氨基。混合二烷基氨基(即其中R′和R"是不同的)也是有可能的。
甲硅烷氧基是指通式-OSiR3的基团,其中每个R基团独立选自氢原子和烷基。所述烷基优选含有1-6个、更优选含有1-4个碳原子。
术语酯基(也称烷氧羰基)是指式-C(O)OR的基团,其中R为氢原子或烷基。烷基优选含有1-6个,更优选含有1-4个碳原子。
术语杂环基是指这样的基团:含有3-20个、更优选3-10个碳原子并且至少含有1元乃至4、5、6或7元饱和或不饱和环,所述环含有1、2或3个氧原子、氮原子或硫原子。含有饱和环的杂环基包括以吡咯烷、哌啶、四氢噻吩、二硫戊环、氧硫杂环戊烷、噁唑烷、噁嗪烷、氧硫杂环己烷、四氢噻喃、四氢吡喃、二氧戊环、二氧六环、噻嗪烷、二噻烷、噻唑烷、咪唑烷、六氢嘧啶和四氢呋喃为基础的基团。
含有芳族环的杂环基(杂芳基)包括噻吩基、苯并噻吩基、萘并噻吩基、噻蒽基、呋喃基、吡喃基、异苯并呋喃基、苯并吡喃基、呫吨基、吩噻噁基(phenoxathinyl)、吡咯基、咪唑基、吡唑基、吡啶基、吡嗪基、嘧啶基、哒嗪基、中氮茚基、异氮茚基、吲哚基、吲唑基、嘌呤基、喹嗪基、异喹啉基、喹啉基、2,3-二氮杂萘基、1,5-二氮杂萘基、喹唑啉基、噌啉基、蝶啶基、咔唑基、carbonliny、菲啶基、吖啶基、啶基、菲咯啉基、吩嗪基、异噻唑基、吩噻嗪基、异噁唑基、呋咱基、喹喔啉基(quinoxalynyl)、喹唑啉基(quinazolynyl)、pylazinyl、acrydinyl、phenadinyl、furluryl、isochiazolyl、isoquixazolyl、phenoquisadinyl、苯并噻唑基、benzoxazylyl、benzoinidazolyl、皮蒽基、oparenyl和吩噁嗪基。
术语卤素是指任何选自氟、氯、溴和碘的卤原子,优选选自氟和氯。
在如上定义的可任选取代的任何基团的情况下,这些取代基可以包括卤原子、羟基、巯基、氰基、氨基、甲硅烷基、硝基、烷基、卤代烷基、环烷氧基、烷氧基、卤代烷氧基、烷氧羰基、羧基、羰基、烷酰基、烷硫基、烷基亚磺酰基、亚磺酰基、烷基磺酰基、磺酸酯基、烷基磺酸酯基、芳基、芳烷基、烷芳基、芳氧基、芳基亚磺酰基、芳基磺酰基、芳基磺酸酯基、氨磺酰基、氨基甲酰基、脲基、烷酰氨基、烯基、烯氧基和炔基,也包括杂环基。优选的任选取代基是卤原子、硝基、羟基、烷基、卤代烷基、烷氧基和羧基。当任选取代基为烷基、卤代烷基或烷氧基时,取代基的烷基部分优选含有1-6个碳原子,优选线性的。特别优选的任选取代基是氯原子、硝基、羟基、甲基、乙基、叔丁基和甲氧基。
本发明公开的化合物和组合物能够在接触人体或动物体的皮肤或粘膜时产生凉爽感觉。“凉爽感觉”意指人体或动物体可以感觉到的任何凉爽感觉。这种凉爽感觉类似于薄荷醇等化合物所产生的感觉,和/或刺激冷敏感感受器引发的感觉,这些感受器已在McKemy等,Nature,第416卷,2002,52-58中证实。
这种凉爽感觉在不同的应用中都有所需要。例如:本发明的化合物和组合物应用在很多个人卫生用品、口腔卫生用品和食品中。
个人卫生用品包括洗剂、剃须膏、剃须后制剂、洗发剂、调理剂、洗面剂、肥皂、沐浴油和泡沫、防汗剂、祛臭剂。口腔卫生用品包括牙膏、漱口剂、牙线、口香糖、口腔清新剂。食品包括饮料、涂抹食品、冰淇淋、糖果点心。可能的其他需要这种凉爽感觉的应用,包括药品(例如咀嚼药品或润喉糖),烟草产品、驱虫剂和化妆品。
如上所述,本发明第一个实施方案提供式[I]化合物产生凉爽感觉中的用途,条件是如果R1为2-羟基苯基,则R2不为3-硝基苯基。在该实施方案中,已经发现,优选的R1基团包括任选取代的烷基或芳基。所述烷基可以是线性基团例如C1-10脂族链,或是环状基团例如C3-10环烃,优选R1为任选取代的芳基或环烃基,例如苯基或环己基。
优选的R2基团包括氢原子,或任选取代的烷基或芳基,其次,R2基团可以是线性的脂族链,或环烃基,就如同R1一样。优选的基团为任选取代的芳基和环烃基,其中特别优选苯基和环己基。或者,可能需要用其它基团取代这些环状基团,所述其它基团例如氢原子、直链烷基(例如C1-10烷基)或支链烷基(例如叔丁基)。
在第一个实施方案中,一个亚组的特别优选的化合物是那些通式[II]的化合物:
其中X和Y各自独立地为卤原子或烷基、烯基、卤代烷基、烷氧基、羟基、巯基、羧基、硝基、氨磺酰基、磺酸酯基、磺酰基、烷氧基羰基、羰基或氨基,m和n独立地为0、1、2或3,条件是如果n为1,m为1,Y为邻位羟基,则X不为间位硝基。如果取代基X或Y基团含有烷基部分(例如卤代烷基的烷基部分),所述烷基部分优选含有1-6个碳原子,如果是烯基,优选含有2-6个碳原子。
X可以选自任一上述基团,其中优选氢和卤原子,以及硝基、羟基、C1-6烷基、C1-6卤代烷基和C1-6烷氧基。X取代基的数目可以在0和3之间变化,苯环的取代点也可以变化。优选在苯环上只有一个取代基,即m为1时。在这种情况下,相对于苯环与其余含有环状脲基分子的连接点,取代基可以位于邻位、间位或对位。最佳连接点取决于诸多因素,例如取代基的性质、其给电子效应或吸电子效应。特别有用的化合物包括那些取代基位于间位的化合物。
同样,Y可以选自任一上述基团,其中优选氢、羟基、C1-6烷基、C1-6卤代烷基和C1-6烷氧基。Y取代基的数目可以在0和3之间变化,苯环的取代点也可以变化。优选只有一个Y取代基(即n为1时),相对于苯环与其余含有环状脲基分子的连接点,取代基可以位于邻位、间位或对位。特别有用的化合物包括那些Y取代基位于邻位的化合物。
因此,根据本发明的第一实施方案,特别优选的化合物是通式[III]的化合物:
其中X和Y独立选自卤原子或烷基、烯基、卤代烷基、烷氧基、羟基、巯基、羧基、硝基或氨基,条件是如果Y为羟基,则X不为硝基。优选X为氢或卤原子,或硝基、羟基、C1-6烷基或C1-6烷氧基。特别优选的基团包括卤原子和甲基、乙基、甲氧基和乙氧基,优选的卤原子是氯。
业已合成了一些化合物,并且这些化合物显示诱发凉爽感觉的能力。优选的化合物包括:1-(2′-甲氧基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-甲氧基苯基)-4-(3"-氯苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-氯苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-甲基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-甲氧基苯基-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-羟基苯基)-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-三氟甲基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮和1-(2′-羟基苯基)-4-苯基-1,2,3,6-四氢嘧啶-2-酮。尤其是,1-(2′-羟基苯基)-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-三氟甲基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮和1-(2′-羟基苯基)-4-苯基-1,2,3,6-四氢嘧啶-2-酮,都已显示出良好的凉爽效果。
这些化合物可以单独使用,或与一种或多种载体等物质联合用于组合物。这些附加物质的性质以及组合物诸成份的相对比例将取决于诸多因素,例如按特别应用而使用的组合物。就如以上所论述的,这些组合物可以有多种多样的用途。特别优选的应用包括个人卫生用品例如祛臭剂、淋浴凝胶、护肤膏;口腔卫生用品例如牙膏和漱口剂;以及食品例如饮料、冰淇淋、糖果点心和涂抹食品。
本发明的第二个实施方案包括如上所述的通式[IV]化合物或其盐,其中X为氢或卤原子,或羟基、硝基、烷基或烷氧基;Y为氢、羟基、卤代烷基、硝基或烷氧基,n为0、1、2或3,条件是如果n为1且Y为羟基,则X为烷基或羟基。优选如果n为1且Y为羟基,则X不为卤原子。按照该实施方案的一方面,优选如果n为1且Y为羟基,则X为烷基或羟基。在这方面特别优选的是Y为羟基。
在其它实施方案中,优选Y为卤代烷基,特别是当Y为硝基时。特别优选的卤代烷基是卤代甲基,最优选三氟甲基。
Y取代基的数目可以在0和3之间变化,取代基可以存在于任何位置。然而,优选只有一个Y取代基,即当n为1时。相对于苯环与其余分子的连接点,这个取代基可以位于邻位、间位或对位。最佳的取代基位置取决于诸多因素,例如取代基的性质及其给电子效应或吸电子效应。优选邻位。根据第二个实施方案,特别优选的化合物是那些通式[V]的化合物:
其中Y如上定义。优选Y为羟基或甲氧基。X优选为氢或卤原子,或羟基、C1-6烷基或C1-6烷氧基;条件是如果Y为羟基,则X为烷基或羟基。特别优选的X基团包括卤原子和甲基、乙基、甲氧基和乙氧基。最优选氯原子和甲氧基。
按照该实施方案,那些已显示凉爽效应的化合物包括那些在第一个实施方案中列出的化合物,特别是,1-(2′-羟基苯基)-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-(2′-三氟甲基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮、1-苯基-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮和1-(2′-羟基苯基)-4-苯基-1,2,3,6-四氢嘧啶-2-酮。最优选1-(2′-羟基苯基)-4-(3"-甲氧基苯基)-1,2,3,6-四氢嘧啶-2-酮和1-(2′-三氟甲基苯基)-4-(3"-硝基苯基)-1,2,3,6-四氢嘧啶-2-酮。
其次,本发明第二个实施方案的化合物可以有多种多样的用途,例如以上论述的用途。具体地说,这些化合物可以使用在那些类似于如上第一个实施方案中所叙述的应用中,例如应用于个人卫生用品例如祛臭剂、淋浴凝胶和护肤膏;口腔卫生用品例如漱口剂和牙膏;以及食品。这些化合物在饮料、涂抹食品、糖果点心、冰淇淋等食品中,可能有许多特别有效的应用。
本发明第三个实施方案提供包含本发明化合物的新组合物。该组合物可以使用在一些需要凉爽感觉的应用中。如上论述,这些应用可以包括个人卫生用品领域(包括洗剂、剃须膏、剃须后制剂、洗发剂、调理剂、洗面霜、肥皂、沐浴油和泡沫、防汗剂和祛臭剂);口腔卫生用品(包括牙膏、漱口剂、牙线、口香糖和口腔清新剂);食品(包括饮料、涂抹食品、冰淇淋和糖果点心);还有其它可能需要凉爽感觉应用(包括药品例如咀嚼药品或润喉糖、烟草产品、驱虫剂和化妆品)。
这些组合物特别优选的应用如:牙膏、漱口剂和食品例如糖果点心、饮料、涂抹食品和冰淇淋。组合物的特性(例如添加成分的性质、各组分的相对比例和组合物的物理性质)将取决于它的具体应用。
在第三个实施方案的第一方面,提供包含以下产生凉爽感觉的式[I]化合物或其盐的组合物例如牙膏、漱口剂和食品:
其中R1和R2独立选自氢或卤原子;羟基、氰基、硝基、巯基、羰基、砜和羧基;或任选取代的烷基、烯基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、氨基、甲硅烷氧基、酯基和杂环基。在这方面,优选的是式[I]化合物不是其中R1为2-羟基苯基且R2为3-硝基苯基的那些化合物。
式[I]化合物可以是根据上列名目对R1和R2作出选择的任何化合物。然而,优选的化合物是在本发明第一个实施方案中业已论述过的那些化合物。
在本发明该实施方案的第二方面,提供包含在本发明第二个实施方案中业已论述的式[IV]化合物的组合物,例如牙膏、漱口剂或食品。
无论哪方面,能够产生凉爽感觉的化合物其用量优选为0.0001%至3%,例如按组合物总重计为0.001%(重量)至0.3%(重量)。特别优选的范围是0.0001%(重量)至0.3%(重量)。化合物的用量是0.0003%至0.1%,或是0.003%至0.1%。
以上在本发明所有实施方案中所公开的化合物都可以按照以下流程1所示的通用方法来制备:
流程1
流程1中要求的β-氨基-酮化合物可以使用任何适合的方法制备,例如按照以下实施例1和实施例2中描述的合成路线制备,或者通过US 3,821,221的实施例中公开的的合成路线制备。
下面仅通过实施例来说明本发明的优选实施方案。在本发明范围内的进一步修改对于本领域技术人员而言将会是显而易见的。
实施例
实施例1:
二甲氨基-间氯苯基·乙基酮盐酸盐的制备
在室温下,于氮气中将溶于乙晴(7.83毫升)中的乙酰氯溶液(7.8毫升,0.11摩尔)滴加到溶于乙晴(350毫升)中的四甲基二氨基甲烷溶液(15.0毫升,0.11摩尔)中。加入后,持续搅拌1小时,然后在5分钟内加入3′-氯苯乙酮(20.0克,0.13摩尔)。所得反应混合物回流2小时,冷却至室温并滤出生成的白色沉淀物,用冷乙晴洗涤并经真空干燥(22.9克,84%)。
1H NMR(d6-DMSO,500MHz)δH2.80(6H,s,2×CH3),3.39(2H,t,CH2,3JHH=7.25Hz),3.64(2H,t,CH2,3JHH=6.94Hz),7.61(1H,dd,Hc,3JHcHb=7.89Hz),3JHcHb=7.88Hz,7.77(1H,ddd,Hb,3JHbHc=7.88Hz,4JHbHd=2.20Hz,4JHbHa=0.94Hz),7.97(1H,ddd,Hd,3JHdHc=7.88Hz,4JHdHb=0.95Hz,4JHdHa=1.58Hz),8.04(1H,dd,Ha,4JHdHa=1.89Hz,4JHaHd=1.89Hz).
实施例2:
β-(邻羟基苯胺基)-间氯苯基·乙基酮盐酸盐的制备
将二甲基氨基-间氯苯基·乙基酮盐酸盐(74.9克,0.30摩尔)回流时溶于50%含水乙醇(700毫升)中。然后加入2-氨基苯酚(32.9克,0.30摩尔),由此生成的红色溶液再回流2小时。让所得反应混合物冷却至室温后用乙酸乙酯(2 x 100毫升)萃取两次。注意此时也要加入盐水以使两层有效地分离。合并有机萃取液,加入过量的浓盐酸(47毫升)。真空浓缩溶液而后冷却。滤出生成的沉淀,用乙醚洗涤,并经真空干燥,得到乳白色粉末(38.1克,40%)。
1H NMR(d6-DMSO,500MHz)δH 7.92(1H,m,Hd),7.90(1H,dd,Ha,4JHaHb=1.58Hz,4JHaHd=1.26Hz),7.75(1H,ddd,Hb,3JHbHc=7.89Hz,4JHbHd=0.95Hz,4JHbHa=1.90Hz),7.60(1H,dd,Hc,3JHcHb=7.88Hz,3JHcHd=8.20Hz),7.43(1H,d,Hj,3JHjHi=7.89Hz),7.19(1H,t,Hh,3JHhHi=7.57Hz,3JHhHg=7.25Hz),7.06(1H,d,Hg,3JHgHh=8.20Hz),6.88(1H,ddd,H1,3JHiHj=7.56Hz,3JHiHj=7.88Hz,4JHiHg=1.26Hz),3.57(4H,m,2×CH2).
实施例3:
1-(2′-羟基苯基)-4-(3"-氯苯基)-1,2,3,6-四氢嘧啶-2-酮的制备
将β-(邻羟基苯胺基)-间氯苯基·乙基酮盐酸盐(4.0克,0.013摩尔)溶于乙酸(50毫升)中,将所得混合物加热至60℃。加入氰酸钾(2.6克,0.032摩尔),所得反应混合物在60℃继续保持30分钟后让其冷却至室温。然后加入水(100毫升),悬浮液用乙酸乙酯(3 x 30毫升)萃取,合并的有机萃取液依次用10%氢氧化钠溶液(100毫升)、10%盐酸(100毫升)和盐水(100毫升)洗涤。真空干燥浓缩有机萃取液(Na2SO4),置室温过夜。滤出生成的沉淀物用乙醚(1.6克,41%)洗涤,得到乳白色粉末(1.6克,41%)。
1H NMR(d6-DMSO,500MHz)δH 9.55(1H,s,NH),8.70(1H,s,OH),7.63(1H,s,Ha),7.54(1H,m,Hc),7.42(2H,m,Hb,Hd),7.18(1H,d,Hj,3JHjHi=7.57Hz),7.12(1H,ddd,Hh,3JHhHi,=7.57Hz,3JHhHg=7.88Hz,4JHhHj=1.57Hz),6.91(1H,d,Hg,3JHgHh=8.20Hz),6.81(1H,dd,Hi,3JHiHj=7.57Hz,3JHiHh=7.57Hz),5.30(1H,m,He),4.25(2H,m,Hf),
实施例4:
通过使培养的神经元同本发明的不同化合物接触并监测细胞的Ca2+水平,体外测试本发明的不同化合物的功效。
已测试的化合物包括一些具有以下通式的化合物:
对下述具体的化合物以及作为对比实施例的薄荷醇一起进行测试:
化合物编号 | X | Y |
1 | NO<sub>2</sub> | OH |
2 | CH<sub>3</sub> | OH |
3 | C1 | OH |
将这些化合物经超声处理溶于二甲基亚砜中成0.1M溶液。将5μl的这种贮备液加到5毫克环糊精和5毫升140Na-tyrode中,以达到100μM的最终测试浓度。
遵循US 5,811,256中描述的方法,制备Wistar大鼠三叉神经节的神经元。经过24小时的培养,按照由McKemy等(Nature,第416卷,2002,52-58)描述的通用方法,测量神经元对不同化合物的反应性。对McKemy描述的测试方案略加改进,通过采用荧光Ca2+指示剂Fura-2。借助视频显微镜分析,对细胞的荧光信号进行检测。用热电偶装置对神经元进行冷刺激,随后通过含有待测化合物溶液的过冷却,检测对待测化合物的反应性,与此同时,连续地监测细胞的Ca2+水平。
化合物1至3和薄荷醇的结果已记录并按与化合物1(icilin)活性的相对百分率表述如下:
化合物 | 活性(相对于化合物1的%) |
1 | 100 |
2 | 40 |
3 | 35 |
薄荷醇(对比实施例) | 42 |
可以发现,当本发明化合物同培养的神经元接触时可以产生凉爽感觉。也可以预期,当化合物与人体(例如皮肤和/或粘膜)接触时,同样可以达到上述试验所显示的体外效果,从而提供凉爽感觉。
Claims (16)
2.权利要求1的用途,其中X为氯原子。
3.权利要求1的用途,其中所述化合物选自:
1-(2′-羟基苯基)-4-(3"-氯苯基)-1,2,3,6-四氢嘧啶-2-酮,和
1-(2′-羟基苯基)-4-(3"-甲基苯基)-1,2,3,6-四氢嘧啶-2-酮。
4.权利要求1的用途,其中所述化合物是1-(2′-羟基苯基)-4-(3"-氯苯基)-1,2,3,6-四氢嘧啶-2-酮。
6.权利要求5的牙膏组合物,其中所述式[V]化合物如权利要求2-4中任一项中定义。
8.权利要求7的漱口剂组合物,其中所述式[V]化合物如权利要求2-4中任一项中定义。
10.权利要求9的食品组合物,其中所述式[V]化合物如权利要求2-4中任一项中定义。
11.权利要求9或权利要求10的食品组合物,其中所述食品是饮料。
12.权利要求9或权利要求10的食品组合物,其中所述食品是冰淇淋。
13.权利要求9或权利要求10的食品组合物,其中所述食品是涂抹食品。
14.权利要求9或权利要求10的食品组合物,其中所述食品是糖果点心。
15.权利要求9-14中任一项的组合物,其中式[V]化合物的用量为0.0001-3%重量。
16.权利要求15的组合物,其中式[V]化合物的用量为0.0003-0.1%重量。
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WO2023006234A1 (en) | 2021-07-30 | 2023-02-02 | Symrise Ag | Biobased core-shell microcapsules |
WO2023117643A1 (en) | 2021-12-23 | 2023-06-29 | Firmenich Sa | Antimicrobial composition having encapsulated colorant |
WO2023147855A2 (de) | 2022-02-02 | 2023-08-10 | Symrise Ag | Verfahren zur herstellung von mikrokapseln |
WO2023148253A1 (de) | 2022-02-02 | 2023-08-10 | Symrise Ag | Verfahren zur herstellung von mikrokapseln |
WO2024011086A1 (en) | 2022-07-07 | 2024-01-11 | Firmenich Incorporated | Compositions that enhance the cooling effect |
WO2022207944A2 (en) | 2022-07-11 | 2022-10-06 | Symrise Ag | Novel mixtures and uses of (2e)-3-(1,3-benzodioxol-5-yl)-n-phenyl-n-(tetrahydro-3-furanyl)-2-propenamide |
WO2024028515A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Composition comprising a uv-filter stabilizer |
WO2024028512A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Compositions comprising an antimicrobial boosting agent |
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WO2024027928A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Composition with improved spf and uva photoprotection |
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WO2024027926A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Composition comprising a uv-filter stabilizer |
WO2024027931A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Odor and colorant stabilized compositions |
WO2024028513A1 (en) | 2022-08-05 | 2024-02-08 | Symrise Ag | Odor and colorant stabilized compositions |
WO2024133616A1 (en) | 2022-12-21 | 2024-06-27 | Firmenich Sa | Oral care compositions |
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US3821221A (en) * | 1970-08-25 | 1974-06-28 | Delmar Chem | 1,2,3,6-tetrahydropyrimidine-2-one compounds and processes for makingthem |
JPH0887120A (ja) * | 1994-09-19 | 1996-04-02 | Fuji Electric Co Ltd | 電子写真用感光体 |
MXPA04010860A (es) * | 2002-05-02 | 2005-11-17 | Cragmont Pharmaceuticals Llc | Composiciones terapeuticas de 1,2,3,6-tetrahidropirimidin-2-ona y metodos para usarla. |
-
2002
- 2002-09-18 GB GBGB0221697.6A patent/GB0221697D0/en not_active Ceased
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2003
- 2003-08-26 EP EP03797254.4A patent/EP1546114B1/en not_active Expired - Lifetime
- 2003-08-26 CN CNB038251248A patent/CN100506800C/zh not_active Expired - Fee Related
- 2003-08-26 WO PCT/EP2003/009566 patent/WO2004026840A1/en active Application Filing
- 2003-08-26 JP JP2004536964A patent/JP4959939B2/ja not_active Expired - Fee Related
- 2003-08-26 BR BR0314447-0A patent/BR0314447A/pt not_active Application Discontinuation
- 2003-08-26 AU AU2003266321A patent/AU2003266321A1/en not_active Abandoned
- 2003-08-26 RU RU2005111243/04A patent/RU2334741C2/ru not_active IP Right Cessation
- 2003-09-17 US US10/664,367 patent/US7045624B2/en not_active Expired - Fee Related
-
2005
- 2005-03-14 ZA ZA200502122A patent/ZA200502122B/en unknown
-
2006
- 2006-01-10 US US11/328,534 patent/US20060106217A1/en not_active Abandoned
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AG-3-5: a chemical producing sensations of cold. E. T. WEI, ET AL.J. Pharm. Pharmacol.,Vol.35 . 1983 * |
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US20040067970A1 (en) | 2004-04-08 |
US20060106217A1 (en) | 2006-05-18 |
JP4959939B2 (ja) | 2012-06-27 |
JP2006512294A (ja) | 2006-04-13 |
RU2005111243A (ru) | 2005-10-27 |
BR0314447A (pt) | 2005-07-19 |
ZA200502122B (en) | 2006-05-31 |
GB0221697D0 (en) | 2002-10-30 |
US7045624B2 (en) | 2006-05-16 |
WO2004026840A1 (en) | 2004-04-01 |
AU2003266321A1 (en) | 2004-04-08 |
RU2334741C2 (ru) | 2008-09-27 |
EP1546114A1 (en) | 2005-06-29 |
EP1546114B1 (en) | 2015-09-30 |
CN1694872A (zh) | 2005-11-09 |
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