2,4-dimethyl-6-(oxazol-2-yl)aniline | 349453-71-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2,4-dimethyl-6-(oxazol-2-yl)aniline
• 英文别名: 2,4-Dimethyl-6-(1,3-oxazol-2-yl)aniline
• CAS: 349453-71-0
• 化学式: C₁₁H₁₂N₂O
• 分子量: 188.229
• InChiKey: VEVUDVDUSBSZJG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  52
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,4-dimethyl-6-(oxazol-2-yl)aniline 在 盐酸 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 2.0h， 生成 3-{[(4-chloro-3-methyl-5-isoxazolyl)amino]sulfonyl}-N-[2,4-dimethyl-6-(1,3-oxazol-2-yl)phenyl]-2-thiophenecarboxamide
  参考文献：
  名称：

  Discovery, Modeling, and Human Pharmacokinetics of N-(2-Acetyl-4,6-dimethylphenyl)-3-(3,4-dimethylisoxazol-5-ylsulfamoyl)thiophene-2-carboxamide (TBC3711), a Second Generation, ET_A Selective, and Orally Bioavailable Endothelin Antagonist

  摘要：

  Sitaxsentan (1) (Wu et al. J. Med. Chem. 1997, 40, 1690) is our first endothelin antagonist being evaluated in clinical trials. It has demonstrated biological effects in an acute hemodynamic study in CHF (Givertz et al. Circulation 2000, 101, 2922), an open-label 20-patient pulmonary hypertension trial (Barst et al. Chest 2002, 121, 1860-1868), and a 31-patient trial in essential hypertension (Calhoun et al. AHA Scientific Sessions 2000). In a phase 2b/3 pulmonary arterial hypertension trial, once a day treatment of 100 mg of sitaxsentan statistically significantly improved 6-min walk distance and NYHA class at 12 weeks (Barst et al. Am. J. Respir. Crit. Care Med. 2004, 169, 441). We have since reported on our efforts in generating follow-up compounds (Wu et al. J. Med. Chem. 1999, 42, 4485) and recently communicated that an ortho acyl group on the anilino ring enhanced oral absorption in this category of compounds (Wu et al. J. Med. Chem. 2001, 44, 1211). Here we report an expansion of this work by substituting a variety of electron-withdrawing groups at the ortho position and evaluating their effects on oral bioavailability as well as structure-activity relationships. As a result, TBC3711 (7z) was identified as our second endothelin antagonist to enter the clinic due to its good oral bioavailability (similar to100%) in rats, high potency (ETA IC50 = 0.08 nM), and optimal ETA/ETB selectivity (441 000-fold). Compound 7z has completed phase-I clinical development and was well tolerated with desirable pharmacokinetics in humans (t(1/2) = 6-7 h, oral availability > 80%).

  DOI：

  10.1021/jm030528p
• 作为产物：
  描述：

  3,5-二甲基苯甲酸 在 吡啶 、 盐酸 、 nickel(IV) oxide 、 氯化亚砜 、 硫酸 、 potassium nitrate 、 tin(ll) chloride 作用下， 以 二氯甲烷 、 苯 为溶剂， 反应 53.0h， 生成 2,4-dimethyl-6-(oxazol-2-yl)aniline
  参考文献：
  名称：

  Discovery, Modeling, and Human Pharmacokinetics of N-(2-Acetyl-4,6-dimethylphenyl)-3-(3,4-dimethylisoxazol-5-ylsulfamoyl)thiophene-2-carboxamide (TBC3711), a Second Generation, ET_A Selective, and Orally Bioavailable Endothelin Antagonist

  摘要：

  Sitaxsentan (1) (Wu et al. J. Med. Chem. 1997, 40, 1690) is our first endothelin antagonist being evaluated in clinical trials. It has demonstrated biological effects in an acute hemodynamic study in CHF (Givertz et al. Circulation 2000, 101, 2922), an open-label 20-patient pulmonary hypertension trial (Barst et al. Chest 2002, 121, 1860-1868), and a 31-patient trial in essential hypertension (Calhoun et al. AHA Scientific Sessions 2000). In a phase 2b/3 pulmonary arterial hypertension trial, once a day treatment of 100 mg of sitaxsentan statistically significantly improved 6-min walk distance and NYHA class at 12 weeks (Barst et al. Am. J. Respir. Crit. Care Med. 2004, 169, 441). We have since reported on our efforts in generating follow-up compounds (Wu et al. J. Med. Chem. 1999, 42, 4485) and recently communicated that an ortho acyl group on the anilino ring enhanced oral absorption in this category of compounds (Wu et al. J. Med. Chem. 2001, 44, 1211). Here we report an expansion of this work by substituting a variety of electron-withdrawing groups at the ortho position and evaluating their effects on oral bioavailability as well as structure-activity relationships. As a result, TBC3711 (7z) was identified as our second endothelin antagonist to enter the clinic due to its good oral bioavailability (similar to100%) in rats, high potency (ETA IC50 = 0.08 nM), and optimal ETA/ETB selectivity (441 000-fold). Compound 7z has completed phase-I clinical development and was well tolerated with desirable pharmacokinetics in humans (t(1/2) = 6-7 h, oral availability > 80%).

  DOI：

  10.1021/jm030528p

文献信息

• Sulfonamides and derivatives thereof that modulate the activity of endothelin
  申请人：Texas Biotechnology Corporation

  公开号：US20010056183A1

  公开（公告）日：2001-12-27

  Thienyl-, furyl-, pyrrolyl- and phenylsulfonamides, formulations of pharmaceutically-acceptable derivatives thereof and methods for modulating or altering the activity of the endothelin family of peptides are provided. In particular, N-(isoxazolyl)thienylsulfonamides, N-(isoxazolyl)furylsulfonamides, N-(isoxazolyl)pyrrolylsulfonamides and N-(isoxazolyl)phenylsulfonamides, formulations thereof and methods using these sulfonamides for inhibiting the binding of an endothelin peptide to an endothelin receptor by contacting the receptor with the sulfonamide are provided. Methods for treating endothelin-mediated disorders by administering effective amounts of one or more of these sulfonamides or pharmaceutically acceptable derivatives thereof that inhibit the activity of endothelin are also provided.

  提供了噻吩基、呋喃基、吡咯基和苯基磺酰胺，以及其药学上可接受的衍生物的配方和调节或改变内皮素家族肽活性的方法。具体而言，提供了N-(异噁唑基)噻吩基磺酰胺、N-(异噁唑基)呋喃基磺酰胺、N-(异噁唑基)吡咯基磺酰胺和N-(异噁唑基)苯基磺酰胺，以及这些磺酰胺的配方和使用这些磺酰胺通过与受体接触来抑制内皮素肽与内皮素受体的结合的方法。还提供了通过给予这些磺酰胺或药学上可接受的抑制内皮素活性的衍生物的有效量来治疗内皮素介导的疾病的方法。
• SULFONAMIDES AND DERIVATIVES THEREOF THAT MODULATE THE ACTIVITY OF ENDOTHELIN
  申请人：ENCYSIVE PHARMACEUTICALS INC.

  公开号：EP1244657B1

  公开（公告）日：2004-12-29
• US6686382B2
  申请人：——

  公开号：US6686382B2

  公开（公告）日：2004-02-03
• [EN] PHARMACEUTICAL AND VETERINARY USES OF ENDOTHELIN ANTAGONISTS<br/>[FR] UTILISATIONS PHARMACEUTIQUES ET VETERINAIRES D'ANTAGONISTES DE L'ENDOTHELINE ET APPLICATIONS ASSOCIEES
  申请人：TEXAS BIOTECHNOLOGY CORP

  公开号：WO2001049289A1

  公开（公告）日：2001-07-12

  Pharmaceutical and veterinary uses of endothelin antagonists are provided. In particular, methods of treatment of laminitis, such as equine and bovine laminitis, by administration of one or more endothelin antagonists are provided. Methods of treatment, prevention, or amelioration of one or more symptoms of menopause; osteoporosis and metabolic bone disorders; climacteric disorders including hot flushes or flashes, abnormal clotting patterns, urogenital discomfort and increased incidence of cardiovascular disease, and other disorders associated with the reduction in ovarian function in women; pre-eclampsia; and control and management of labor during pregnancy by administration of endothelin antagonists are also provided.
• Discovery, Modeling, and Human Pharmacokinetics of <i>N</i>-(2-Acetyl-4,6-dimethylphenyl)-3-(3,4-dimethylisoxazol-5-ylsulfamoyl)thiophene-2-carboxamide (TBC3711), a Second Generation, ET_A Selective, and Orally Bioavailable Endothelin Antagonist
  作者：Chengde Wu、E. Radford Decker、Natalie Blok、Huong Bui、Tony J. You、Junmei Wang、Andree R. Bourgoyne、Vippra Knowles、Kurt L. Berens、George W. Holland、Tommy A. Brock、Richard A. F. Dixon

  DOI：10.1021/jm030528p

  日期：2004.4.1

  Sitaxsentan (1) (Wu et al. J. Med. Chem. 1997, 40, 1690) is our first endothelin antagonist being evaluated in clinical trials. It has demonstrated biological effects in an acute hemodynamic study in CHF (Givertz et al. Circulation 2000, 101, 2922), an open-label 20-patient pulmonary hypertension trial (Barst et al. Chest 2002, 121, 1860-1868), and a 31-patient trial in essential hypertension (Calhoun et al. AHA Scientific Sessions 2000). In a phase 2b/3 pulmonary arterial hypertension trial, once a day treatment of 100 mg of sitaxsentan statistically significantly improved 6-min walk distance and NYHA class at 12 weeks (Barst et al. Am. J. Respir. Crit. Care Med. 2004, 169, 441). We have since reported on our efforts in generating follow-up compounds (Wu et al. J. Med. Chem. 1999, 42, 4485) and recently communicated that an ortho acyl group on the anilino ring enhanced oral absorption in this category of compounds (Wu et al. J. Med. Chem. 2001, 44, 1211). Here we report an expansion of this work by substituting a variety of electron-withdrawing groups at the ortho position and evaluating their effects on oral bioavailability as well as structure-activity relationships. As a result, TBC3711 (7z) was identified as our second endothelin antagonist to enter the clinic due to its good oral bioavailability (similar to100%) in rats, high potency (ETA IC50 = 0.08 nM), and optimal ETA/ETB selectivity (441 000-fold). Compound 7z has completed phase-I clinical development and was well tolerated with desirable pharmacokinetics in humans (t(1/2) = 6-7 h, oral availability > 80%).