3-[4-(5-isoxazolyl)-phenyl]-alanine ethyl ester | 184698-53-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 3-[4-(5-isoxazolyl)-phenyl]-alanine ethyl ester
• 英文别名: Ethyl 2-amino-3-[4-(1,2-oxazol-5-yl)phenyl]propanoate
• CAS: 184698-53-1
• 化学式: C₁₄H₁₆N₂O₃
• 分子量: 260.293
• InChiKey: NYIGKEOFCAVNNV-UHFFFAOYSA-N

物化性质

• 沸点：
  416.0±40.0 °C(Predicted)
• 密度：
  1.179±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  78.4
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-[4-(5-isoxazolyl)-phenyl]-alanine ethyl ester 在 盐酸 、 三乙基硅烷 、 环戊二烯 、 三氟乙酸 作用下， 生成 ethyl (2R)-2-(methylamino)-3-[4-(1,2-oxazol-5-yl)phenyl]propanoate
  参考文献：
  名称：

  Stereoselective synthesis of a novel and bifunctional endothelin antagonist, IRL 3630

  摘要：

  IRL 3630 (3), a single enantiomer of IRL 3461 with more potency was identified. Coupling reaction of the racemic fragment (1) with the chiral (L)-valinesulfonamide (2) under a biphasic solvent system (CH2Cl2-H2O) successfully led to the predominant formation of the desired isomer (3) with concomitant isomerization of 1. IRL 3630, N-butanesulfonyl-[N-(3,5-dimethylbenzoyl)-N-methyl-3-[4-(5-isoxazolyl)-phenyl]-(D)-alanyl]-(L)-valineamide, is a highly potent and bifunctional (ETA+ETB) antagonist [Ki(ETA)=1.5 nM, Ki(ETB)=1.2 nM]. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0960-894x(98)00388-6
• 作为产物：
  描述：

  5-(4-甲基苯基)异噁唑 在 sodium hydroxide 、 N-溴代丁二酰亚胺(NBS) 、 四丁基硫酸氢铵 、 对甲苯磺酸 、 过氧化苯甲酰 作用下， 以 四氯化碳 为溶剂， 生成 3-[4-(5-isoxazolyl)-phenyl]-alanine ethyl ester
  参考文献：
  名称：

  Discovery of IRL 3461: a novel and potent endothelin antagonist with balanced ETA/ETB affinity

  摘要：

  IRL 3461, N-butanesulfonyl- [N-(3,5-dimethylbenzoyl) -N-methyl-3-[4-(5-isoxazolyl)-phenyl]-alanyl]-(L)-valineamide, a potent and bifunctional (ETA+ETB) [Ki(ETA)= 1.8 nM, Ki(ETB)= 1.2 nM] antagonist was discovered by structural modification of IRL 2500, an ET, selective antagonist. IRL 3461 was found to be stable on incubation with human, rat, mouse, and guinea pig plasmas. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0960-894x(98)00387-4

文献信息

• N-aroylamino acid amides as endothelin inhibitors
  申请人：Novartis AG

  公开号：US05977075A1

  公开（公告）日：1999-11-02

  The present invention relates to the compounds of formula (I) ##STR1## wherein R is carboxy, esterified carboxy, carbamoyl, N-(alkyl or aryl)-carbamoyl, cyano, 5-tetrazolyl or CONH--SO.sub.2 --R.sub.4 ; R.sub.1 is hydrogen, lower alkyl, aryl-lower alkyl or cycloalkyl-lower alkyl; R.sub.2 is hydrogen or lower alkyl, or R.sub.1 and R.sub.2 represent lower alkylene to form together with the carbon and nitrogen atoms to which they are attached an azacycloalkane ring; R.sub.3 is heterocyclic or carbocyclic (aryl or biaryl)-lower alkyl; Y is lower alkylidenyl, 3- to 10-membered cycloalkylidenyl which may be substituted by oxo, alkylenedioxy, hydroxy, acyloxy, lower alkoxy; or Y is 5- to 10-membered cycloalkylidenyl fused to a saturated or unsaturated carbocyclic 5- or 6-membered ring; or Y is 5- to 8-membered oxacycloalkylidenyl, 5- to 8-membered (thia-, oxothia- or dioxothia-) cycloalkylidenyl, or 5- to 8-membered azacycloalkylidenyl optionally N-substituted by lower alkyl or aryl-lower alkyl; R.sub.4 represents hydrogen, lower alkyl, carbocyclic aryl, heterocyclic aryl, cycloalkyl, (carbocyclic aryl, heterocyclic aryl, cycloalkyl, hydroxy, acyloxy, or lower alkoxy)-lower alkyl, lower alkyl substituted by carboxyl, by esterified carboxyl or by amidated carboxyl; Ar represents carbocyclic or heterocyclic aryl; and pharmaceutically acceptable salts thereof; which are useful as endothelin inhibitors in mammals.

  本发明涉及以下式（I）的化合物 其中R为羧基，酯化羧基，氨基甲酰，N-(烷基或芳基)-氨基甲酰，氰基，5-四唑基或CONH--SO.sub.2 --R.sub.4；R.sub.1为氢，低烷基，芳基-低烷基或环烷基-低烷基；R.sub.2为氢或低烷基，或R.sub.1和R.sub.2代表低烷基亦或与其相连的碳和氮原子一起形成环氮烷环；R.sub.3为杂环或碳环（芳基或双芳基）-低烷基；Y为低烷基亚基，3-到10-成员环烷基亚基，可以被氧代，烷二氧基，羟基，酰氧基，低烷氧基取代；或Y为与饱和或不饱和碳环5-或6-成员环融合的5-到10-成员环烷基亚基；或Y为5-到8-成员氧代环烷基亚基，5-到8-成员（硫代、氧代硫代或二氧代硫代）环烷基亚基，或5-到8-成员氮代环烷基亚基，可选择地被低烷基或芳基-低烷基取代；R.sub.4代表氢，低烷基，碳环芳基，杂环芳基，环烷基，（碳环芳基，杂环芳基，环烷基，羟基，酰氧基，或低烷氧基）-低烷基，被羧基，酯化羧基或酰胺基羧基取代的低烷基；Ar代表碳环或杂环芳基；及其在哺乳动物中作为内皮素抑制剂有用的药用盐。
• Antagonists of endothelin receptors
  申请人：Japat Ltd.

  公开号：US05703106A1

  公开（公告）日：1997-12-30

  The present invention provides novel compounds having pharmacological properties represented by the general formula I ##STR1## processes for the manufacture, pharmaceutical compositions and the use of the compounds of formula I and salts thereof.

  本发明提供了具有药理特性的新化合物，其通式如下：##STR1##。提供了制备这些通式化合物的方法、药物组合物以及通式I化合物及其盐的用途。
• Endothelin receptor antagonists
  申请人：Ciba-Geigy Japan Limited

  公开号：US05780498A1

  公开（公告）日：1998-07-14

  The present invention provides novel compounds represented by the general formula I: ##STR1## wherein R.sub.1 is a straight or branched lower alkyl, a cycloalkyl-lower alkyl, an aryl-lower alkyl, a cycloalkyl, an aryl an aryl-cycloalkyl, lower alkoxy, an aryloxy, or a heteroaryl; R.sub.2 is hydrogen, a straight or branched lower alkyl, a cycloalkyl, or a cycloalkyl-lower alkyl; R.sub.3 and R.sub.3 ' are each the same or different and each is hydrogen atom, a straight or branched lower alkyl, a cycloalkyl, an aryl-lower alkyl, an aryl, or a heteroaryl; or R.sub.3 and R.sub.3 ' together form a ring structure; R.sub.3 " is hydrogen, lower alkyl or an aryl; or R.sub.2 and R.sub.3 " together form a lower alkylene group --(CH.sub.2).sub.n -- wherein n is an integer of 1, 2 or 3; or R.sub.2 and R.sub.3 " together form a group represented by the formula: --(CH.sub.2).sub.p --Ar-- or --Ar--(CH.sub.2).sub.p --, respectively, wherein p is zero or an integer of 1 or 2, and Ar is an arylene or heteroarylene; C(.dbd.X) is C(.dbd.O), C(.dbd.S), C(.dbd.NH), C(.dbd.N-lower alkyl); C.dbd.NH--OH, or CH.sub.2 ; Y is a direct bond, --NH--, a lower alkyl-N<, an oxygen atom, or methylene; or C(.dbd.X) is CHOH and Y is a direct bond or methylene; R.sub.4 is --(CH.sub.2).sub.s --Ar' wherein s is zero or an integer of 1, 2 or 3; and Ar' is an aryl, or a heteroaryl; and R.sub.5 is carboxy, substituted or unsubstituted carboxamide, PO(OH).sub.2, tetrazole, CH.sub.2 OH, CN, or hydrogen; and salts thereof.

  本发明提供了一种由通式I表示的新化合物：其中R.sub.1是直链或支链低烷基，环烷基-低烷基，芳基-低烷基，环烷基，芳基，芳基-环烷基，低烷氧基，芳氧基或杂环烷基；R.sub.2是氢，直链或支链低烷基，环烷基，或环烷基-低烷基；R.sub.3和R.sub.3'各自相同或不同，且各自是氢原子，直链或支链低烷基，环烷基，芳基-低烷基，芳基或杂环烷基；或R.sub.3和R.sub.3'共同形成一个环结构；R.sub.3"是氢，低烷基或芳基；或R.sub.2和R.sub.3"共同形成一个低烷基烯基基团--(CH.sub.2).sub.n--其中n是1、2或3的整数；或R.sub.2和R.sub.3"共同形成一个由下式表示的基团：--(CH.sub.2).sub.p--Ar--或--Ar--(CH.sub.2).sub.p--，其中p为零或1或2的整数，Ar为芳基或杂芳基；C(.dbd.X)是C(.dbd.O)，C(.dbd.S)，C(.dbd.NH)，C(.dbd.N-低烷基)；C.dbd.NH--OH，或CH.sub.2；Y是直接键，--NH--，低烷基-N<，氧原子，或亚甲基；或C(.dbd.X)是CHOH，Y是直接键或亚甲基；R.sub.4是--(CH.sub.2).sub.s--Ar'，其中s为零或1、2或3的整数；Ar'为芳基或杂芳基；R.sub.5是羧基，取代或未取代的羧酰胺，PO(OH).sub.2，四唑，CH.sub.2OH，CN或氢；及其盐。
• [EN] ANTAGONISTS OF ENDOTHELIN RECEPTORS<br/>[FR] ANTAGONISTES DES RECEPTEURS DE L'ENDOTHELINE
  申请人：JAPAT LTD.

  公开号：WO1995026360A1

  公开（公告）日：1995-10-05

  (EN) The present invention provides novel compounds having pharmacological properties represented by general formula (I) wherein Ar represents a direct bond or arylene; processes for the manufacture, pharmaceutical compositions and the use of the compounds of formula (I) ans salts thereof.(FR) L'invention se rapporte à de nouveaux composés possédant les propriétés pharmacologiques représentées par la formule générale (I), ainsi qu'aux sels de ceux-ci. Dans cette formule, Ar représente une liaison directe ou arylène. L'invention se rapporte également à des procédés de fabrication des composés de la formule (I) et des sels de ceux-ci, aux compositions pharmaceutiques les contenant ainsi qu'à l'utilisation desdits composés et sels.

  该发明提供了具有药理特性的新化合物，其通式表示为（I），其中Ar代表直接键或芳基；制造过程，药物组成物和化合物（I）及其盐的用途。该发明还涉及制造通式（I）化合物及其盐的方法，包括含有这些化合物和盐的药物组成物以及这些化合物和盐的用途。
• [EN] N-AROYLAMINO ACID AMIDES AS ENDOTHELIN INHIBITORS<br/>[FR] AMIDES DE N-AROYLAMINOACIDE UTILISES EN TANT QU'INHIBITEURS D'ENDOTHELINE
  申请人：NOVARITS AG

  公开号：WO1996033170A1

  公开（公告）日：1996-10-24

  (EN) The present invention relates to the compounds of formula (I) wherein R is carboxy, esterified carboxy, carbamoyl, N-(alkyl or aryl)-carbamoyl, cyano, 5-tetrazolyl or CONH-SO2-R4; R1 is hydrogen, lower alkyl, aryl-lower alkyl or cycloalkyl-lower alkyl; R2 is hydrogen or lower alkyl, or R1 and R2 represent lower alkylene to form together with the carbon and nitrogen atoms to which they are attached an azacycloalkane ring; R3 is heterocyclic or carbocyclic (aryl or biaryl)-lower alkyl; Y is lower alkylidenyl, 3- to 10-membered cycloalkylidenyl which may be substituted by oxo, alkylenedioxy, hydroxy, acyloxy, lower alkoxy; or Y is 5- to 10-membered cycloalkylidenyl fused to a saturated or unsaturated carbocyclic 5- or 6-membered ring; or Y is 5- to 8-membered oxacycloalkylidenyl, 5- to 8-membered (thia-, oxothia- or dioxothia-) cycloalkylidenyl, or 5- to 8-membered azacycloalkylidenyl optionally N-substituted by lower alkyl or aryl-lower alkyl; R4 represents hydrogen, lower alkyl, carbocyclic aryl, heterocyclic aryl, cycloalkyl, (carbocyclic aryl, heterocyclic aryl, cycloalkyl, hydroxy, acyloxy, or lower alkoxy)-lower alkyl, lower alkyl substituted by carboxyl, by esterified carboxyl or by amidated carboxyl; Ar represents carbocyclic or heterocyclic aryl; and pharmaceutically acceptable salts thereof; which are useful as endothelin inhibitors in mammals.(FR) Composés de formule (I) dans laquelle R est carboxy, carboxy estérifié, carbamoyle, N-(alkyle ou aryle)-carbamoyle, cyano, 5-tétrazolyle ou CONH-SO2-R4; R1 est hydrogène, alkyle inférieur, aryle-alkyle inférieur ou cycloalkyle-alkyle inférieur; R2 est hydrogène ou alkyle inférieur ou R1 et R2 représentent alkylène inférieur pour former ensemble un cycle azacycloalcane avec les atomes de carbone et d'azote auxquels ils sont accolés; R3 est (aryle ou biaryle)-alkyle inférieur hétérocyclique ou carbocyclique; Y est alkylidényle inférieur, cycloalkylidényle ayant de 3 à 10 éléments, qui peut être substitué par oxo, alkylènedioxy, hydroxy, acyloxy, alcoxy inférieur, ou Y est cycloalkylidényle ayant de 5 à 10 éléments condensé avec un cycle saturé ou insaturé carbocyclique à 5 ou 6 éléments, ou Y est oxacycloalkylidényle ayant de 5 à 8 éléments, (thia-, oxothia- ou dioxothia-) cycloalkylidényle ayant de 5 à 8 éléments, ou azacycloalkylidényle ayant 5 à 8 éléments, éventuellement à substitution N par alkyle inférieur ou aryle-alkyle inférieur; R4 représente hydrogène, alkyle inférieur, aryle carbocyclique, aryle hétérocyclique, cycloalkyle, (aryle carbocyclique, aryle hétérocyclique, cycloalkyle, hydroxy, acyloxy ou alcoxy inférieur)-alkyle inférieur, alkyle inférieur substitué par carboxyle, par carboxyle estérifié ou par carboxyle amidé, Ar représente aryle carbocyclique ou hétérocyclique; et sels pharmaceutiquement acceptables desdits composés, utiles en tant qu'inhibiteurs d'endothéline chez les mammifères.

  本发明涉及式（I）中的化合物，其中R是羧基，酯化羧基，氨基甲酰，N-（烷基或芳基）-氨基甲酰，氰基，5-四唑基或CONH-SO2-R4; R1是氢，低级烷基，芳基-低级烷基或环烷基-低级烷基; R2是氢或低级烷基，或R1和R2表示低级亚烷基，与它们所连接的碳和氮原子一起形成一个氮杂环烷环; R3是杂环或碳环（芳基或双芳基）-低级烷基; Y是低级烷基亚甲基，3-至10-成员环烷亚甲基，可以通过氧化，烯二氧，羟基，酰氧，低级烷氧取代; 或Y是5-至10-成员环烷亚甲基与饱和或不饱和的碳环5-或6-成员环融合; 或Y是5-至8-成员氧杂环烷亚甲基，5-至8-成员（噻，氧噻-或二氧噻-）环烷亚甲基，或5-至8-成员的氮杂环烷亚甲基，可选择N-取代低级烷基或芳基-低级烷基; R4代表氢，低级烷基，碳环芳基，杂环芳基，环烷基，（碳环芳基，杂环芳基，环烷基，羟基，酰氧或低级烷氧）-低级烷基，低级烷基通过羧基，酯化羧基或酰胺化羧基取代; Ar代表碳环或杂环芳基; 及其药学上可接受的盐; 在哺乳动物中作为内皮素抑制剂有用。