ethyl 4(S)-<(tert-butyloxycarbonyl)amino>-5-(cyclohexylmethyl)-2,2-difluoro-3(R)-hydroxypentanoate | 103322-58-3

• 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: ethyl 4(S)-<(tert-butyloxycarbonyl)amino>-5-(cyclohexylmethyl)-2,2-difluoro-3(R)-hydroxypentanoate
• 英文别名: ethyl 4(S)-<(tert-butyloxycarbonyl)amino>-5-cyclohexyl-2,2-difluoro-3(R)-hydroxypentanoate；ethyl 5-cyclohexyl-4(S)-[(N-tert-butoxycarbonyl)amino]-2,2-difluoro-3(R)-hydroxypentanoate；ethyl (3R,4S)-3-hydroxy-4-t-butyloxycarbonylamino-2,2-difluoro-5-cyclohexylpentanoate；ethyl 4(S)-[(tert-butyloxycarbonyl)amino]-5-(cyclohexylmethyl)-2,2-difluoro-3(R)-hydroxypentanoate；ethyl (3R,4S)-5-cyclohexyl-2,2-difluoro-3-hydroxy-4-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoate
• CAS: 103322-58-3
• 化学式: C₁₈H₃₁F₂NO₅
• 分子量: 379.445
• InChiKey: YTRKCQUAWRUHJW-UONOGXRCSA-N

物化性质

• 熔点：
  110.5-111.5 °C
• 沸点：
  500.4±50.0 °C(Predicted)
• 密度：
  1.135±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  26
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  84.9
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  ethyl 4(S)-<(tert-butyloxycarbonyl)amino>-5-(cyclohexylmethyl)-2,2-difluoro-3(R)-hydroxypentanoate 在 盐酸 、 sodium hydroxide 、 甲酸 、 1-羟基苯并三唑 、 三乙胺 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 二氯甲烷 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 60.25h， 生成 N-<(4-methyl-1-piperazinyl)sulfonyl>-L-phenylalanyl-N-<1(S)-(cyclohexylmethyl)-3,3-difluoro-2(R)-hydroxy-4-<<2-(4-morpholinyl)ethyl>amino>-4-oxobutyl>-4,5-didehydro-L-norvalinamide
  参考文献：
  名称：

  Design and synthesis of potent, selective, and orally active fluorine-containing renin inhibitors

  摘要：

  A series of primate renin inhibitors containing difluorocarbinol and difluoroketone groups at the P1-P1' position have been synthesized and studied both in vitro and in vivo. In vitro, the compounds were evaluated as inhibitors of monkey renin and the closely related aspartic proteinase, cathepsin D (bovine), as a measure of enzyme selectivity. Interestingly, the difluoroketone derivatives showed greatly reduced selectivity compared with the corresponding alcohols. However, selectivity could be enhanced by judicious choice of other substituents. Sites influencing selectivity, included not only P2, Which is well-known to strongly affect selectivity, but also the P4, P1-P1', and P2' sites. These results make possible the design of inhibitors with a greater selectivity for either renin versus cathepsin D. In vivo several of the compounds in the difluoroketone series have shown good oral activity in the salt depleted normotensive cynomolgus monkey model.

  DOI：

  10.1021/jm00079a001
• 作为产物：
  描述：

  丁氧羰基--环乙基-丙氨酸-羟基盐酸盐 在 lithium aluminium tetrahydride 、 三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 、 锌 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 反应 3.83h， 生成 ethyl 4(S)-<(tert-butyloxycarbonyl)amino>-5-(cyclohexylmethyl)-2,2-difluoro-3(R)-hydroxypentanoate
  参考文献：
  名称：

  二氟酮类肽模拟物提示阿尔茨海默氏病的γ-分泌酶有较大的S1口袋：这对抑制剂设计具有重要意义。

  摘要：

  与阿尔茨海默氏病的病因有关的淀粉样β蛋白（Abeta）的生成的最后一步是通过γ-分泌酶在淀粉样前体蛋白（APP）的跨膜区域内进行蛋白水解。尽管γ-分泌酶被认为是治疗设计的重要目标，但尚未被充分表征或确定。我们实验室中先前使用基于底物的二氟酮和二氟醇过渡态类似物抑制剂的研究表明，γ-分泌酶是天冬氨酰蛋白酶，具有宽松的序列特异性。为了进一步表征γ-分泌酶的活性位点，我们制备了一系列在P1位置具有不同空间体积的二氟酮肽类似物，并测试了这些化合物抑制APP转染细胞中Abeta产生的能力。庞大的脂肪族P1侧链（如仲丁基或环己基甲基）的引入导致增加的γ-分泌酶抑制能力，这表明一个大的S1口袋可容纳这些取代基，并为松散的序列特异性提供了进一步的证据。环己基甲基P1取代基可将N端截短为低分子量化合物（<600 Da），该化合物有效地阻断了Abeta的产生（IC（50）约为5 microM）。该发现表明，最

  DOI：

  10.1021/jm000100f

文献信息

• Design and synthesis of potent and specific renin inhibitors containing difluorostatine, difluorostatone, and related analogs
  作者：Suvit Thaisrivongs、Donald T. Pals、Warren M. Kati、Steve R. Turner、Lisa M. Thomasco、William Watt

  DOI：10.1021/jm00160a048

  日期：1986.10

  Peptides that contain difluorostatine and difluorostatone residues have been shown to be potent inhibitors of the aspartyl protease renin. The readily hydrated fluoro ketone is proposed to mimic the tetrahedral intermediate that forms during the enzyme-catalyzed hydrolysis of a peptidic bond. It is suggested that the sp3-hybridized ketal acts as a transition-state analogue renin inhibitor. The fluoro

  已显示含有二氟他汀和二氟他酮残基的肽是天冬氨酰蛋白酶肾素的有效抑制剂。提议将易水合的氟代酮模拟在肽催化的酶催化水解过程中形成的四面体中间体。建议将sp3杂化的缩酮用作过渡态类似物肾素抑制剂。氟代酮显示出比相应的非氟代酮更有效的抑制剂，后者是伪底物。P1位点上更多的亲脂性侧链可以增强二氟他汀类似物的抑制能力，但这在二氟他酮系列中无法得到证实。另外，对于含二氟他酮的肽已经显示出高的肾素特异性。
• Angiotensinogen analogs
  申请人：Abbott Laboratories

  公开号：US04857507A1

  公开（公告）日：1989-08-15

  The invention relates to renin inhibiting compounds of the formula ##STR1## wherein A is hydrogen; loweralkyl; arylalkyl; OR.sub.10 or SR.sub.10 wherein R.sub.10 is hydrogen, loweralkyl or aminoalkyl; NR.sub.11 R.sub.12 wherein R.sub.11 and R.sub.12 are independently selected from hydrogen, loweralkyl, aminoalkyl, cyanoalkyl and hydroxyalkyl; ##STR2## wherein B is NH, alkylamino, S, O, CH.sub.2 or CHOH and R.sub.13 is loweralkyl, cycloalkyl, aryl, arylalkyl, alkoxy, alkenyloxy, hydroxyalkoxy, dihydroxyalkoxy, arylalkoxy, arylalkoxyalkyl, amino, alkylamino, dialkylamino, (hydroxyalkyl)(alkyl)amino, (dihydroxyalkyl)(alkyl)amino, aminoalkyl, alkoxycarbonylalkyl, carboxyalkyl, N-protected aminoalkyl, alkylaminoalkyl, (N-protected)(alkyl)aminoalkyl, dialkylaminoalkyl, (heterocyclic) alkyl or a substituted or unsubstituted heterocyclic; W is CO or CHOH and U is CH.sub.2 or NR.sub.2 with the proviso that when W is CHOH then U is CH.sub.2 ; R.sub.1 is loweralkyl, cycloaklylmethyl, benzyl, .alpha.,.alpha.-dimethylbenzyl, 4-methoxybenzyl, halobenzyl, (1-naphthyl)methyl, (2-naphthyl)methyl, (4-imidazoyl)-methyl, phenethyl, phenoxy, thiophenoxy or anilino; provided if R.sub.1 is phenoxy, thiophenoxy or anilino, B is CH.sub.2 or CHOH or A is hydrogen, R.sub.3 is loweralkyl, vinylloweralkyl, benzyl or heterocyclic ring substituted methyl, R.sub.5 is loweralkyl, cycloalkylmethyl or benzyl; R.sub.2 and R.sub.4 are independently selected from hydrogen and loweralkyl; R.sub.6 is CHOH or CO; R.sub.7 is CH.sub.2, CF.sub.2 or CF with the proviso that when R.sub.6 is CO, R.sub.7 is CF.sub.2 ; R.sub.8 is CH.sub.2, CHR.sub.14 wherein R.sub.14 is lower-alkyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, or R.sub.7 and R.sub.8 taken together can be ##STR3## with the proviso that when R.sub.7 is CF.sub.2, R.sub.8 is CH.sub.2 ; E is O, S, SO, SO.sub.2, NR.sub.15 wherein R.sub.15 is hydrogen or loweralkyl or NR.sub.16 CO wherein R.sub.16 is hydrogen or loweralkyl; R.sub.9 is loweralkyl, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl or an N-protected group, or E and R.sub.9 taken together can be N.sub.3, with the proviso that when E is NH, R.sub.9 is an N-protecting group; and pharmaceutically acceptable salts thereof.

  该发明涉及以下结构的肾素抑制化合物##STR1##其中A为氢；较低烷基；芳基烷基；OR.sub.10或SR.sub.10，其中R.sub.10为氢，较低烷基或氨基烷基；NR.sub.11 R.sub.12，其中R.sub.11和R.sub.12分别选择自氢，较低烷基，氨基烷基，氰基烷基和羟基烷基；##STR2##其中B为NH，烷基氨基，S，O，CH.sub.2或CHOH，R.sub.13为较低烷基，环烷基，芳基，芳基烷基，烷氧基，烯基氧基，羟基烷氧基，二羟基烷氧基，芳基烷氧基，芳基烷氧基烷基，氨基，烷基氨基，二烷基氨基，(羟基烷基)(烷基)氨基，(二羟基烷基)(烷基)氨基，氨基烷基，烷氧羰基烷基，羧基烷基，N-保护氨基烷基，烷基氨基烷基，(N-保护)(烷基)氨基烷基，二烷基氨基烷基，(杂环)烷基或取代或未取代的杂环；W为CO或CHOH，U为CH.sub.2或NR.sub.2，但当W为CHOH时，U为CH.sub.2；R.sub.1为较低烷基，环烷基甲基，苄基，.alpha.，.alpha.-二甲基苄基，4-甲氧基苄基，卤代苄基，(1-萘基)甲基，(2-萘基)甲基，(4-咪唑基)-甲基，苯乙基，苯氧基，噻吩氧基或苯胺基；但如果R.sub.1为苯氧基，噻吩氧基或苯胺基，B为CH.sub.2或CHOH或A为氢，R.sub.3为较低烷基，烯基较低烷基，苄基或杂环环取代甲基，R.sub.5为较低烷基，环烷基甲基或苄基；R.sub.2和R.sub.4分别选择自氢和较低烷基；R.sub.6为CHOH或CO；R.sub.7为CH.sub.2，CF.sub.2或CF，但当R.sub.6为CO时，R.sub.7为CF.sub.2；R.sub.8为CH.sub.2，CHR.sub.14，其中R.sub.14为较低烷基，环烷基，环烷基烷基，芳基或芳基烷基，或R.sub.7和R.sub.8一起可以是##STR3##但当R.sub.7为CF.sub.2时，R.sub.8为CH.sub.2；E为O，S，SO，SO.sub.2，NR.sub.15，其中R.sub.15为氢或较低烷基或NR.sub.16 CO，其中R.sub.16为氢或较低烷基；R.sub.9为较低烷基，环烷基，环烷基烷基，芳基，芳基烷基或N-保护基，或E和R.sub.9一起可以是N.sub.3，但当E为NH时，R.sub.9为N-保护基；及其药学上可接受的盐。
• Peptidyl difluorodiol renin inhibitors
  申请人：ABBOTT LABORATORIES

  公开号：EP0416393A1

  公开（公告）日：1991-03-13

  A renin inhibiting compound of the formula: wherein A is a functional group; W is (1) -C(O)-, (2) -CH(OH)- or (3) -N(R₂)- wherein R₂ is hydrogen or loweralkyl; U is (1) -C(O)-, (2) -CH₂- or (3) -N(R₂)- wherein R₂ is hydrogen or lower alkyl, with the proviso that when W is -CH(OH)- then U is -CH₂- and with the proviso that U is -C(O)- or -CH₂- when W is -N(R₂)-; V is (1) -CH-, (2) -C(OH)- or (3) -C(halogen)- with the proviso that v is -CH-­when U is -N(R₂)-; Q is -CH(R₁)- or -C(=CHR1a)- wherein R₁ is (1) loweralkyl, (2) cycloalkylalkyl, (3) arylalkyl, (4) (heterocyclic)alkyl, (5) 1-benzyloxyethyl, (6) phenoxy, (7) thiophenoxy or (8) anilino, provided that B is -CH₂- or -CH(OH)- or A is hydrogen when R₁ is phenoxy, thiophenoxy or anilino and R1a is aryl or heterocyclic; R₃ is a functional group; R₄ is (1) loweralkyl, (2) cycloalkylmethyl or (3) benzyl; R₅ is -CH(OH)- or -C(O)-; R₆ is -CH(OH)- or -C(O)-; and Z is (1) lower alkyl, (2) aryl, (3) arylalkyl, (4) cycloalkyl, (5) cycloalkylalkyl, (6) heterocyclic or (7) (heterocyclic)alkyl; or a pharmaceutically acceptable salt, ester or prodrug thereof.

  一种肾素抑制化合物的化学式：其中A是一个功能基团；W是(1) -C(O)-，(2) -CH(OH)-或(3) -N(R₂)-，其中R₂是氢或较低烷基；U是(1) -C(O)-，(2) -CH₂-或(3) -N(R₂)-，其中R₂是氢或较低烷基，但当W为-CH(OH)-时，则U为-CH₂-，并且当U为-N(R₂)-时，U为-C(O)-或-CH₂-；V是(1) -CH-，(2) -C(OH)-或(3) -C(卤素)-，但当U为-N(R₂)-时，V为-CH-；Q是-CH(R₁)-或-C(=CHR1a)-，其中R₁是(1) 较低烷基，(2) 环烷基烷基，(3) 芳基烷基，(4) (杂环)烷基，(5) 1-苄氧乙基，(6) 苯氧基，(7) 噻吩氧基或(8) 氨基苯基，前提是当R₁是苯氧基、噻吩氧基或氨基苯基时，B是-CH₂-或-CH(OH)-，或A是氢，而R1a是芳基或杂环；R₃是一个功能基团；R₄是(1) 较低烷基，(2) 环烷基甲基或(3) 苄基；R₅是-CH(OH)-或-C(O)-；R₆是-CH(OH)-或-C(O)-；Z是(1) 较低烷基，(2) 芳基，(3) 芳基烷基，(4) 环烷基，(5) 环烷基烷基，(6) 杂环或(7) (杂环)烷基；或其药学上可接受的盐、酯或前药。
• Synthesis of 6(S)-amino-7-cyclohexyl-4,4-difluoro-3(R),5(R)-dihydroxy-2-methyiheptane, a novel dipeptide mimic
  作者：Hing L. Sham、Cheryl A. Rempel、Herman Stein、Jerome Cohen

  DOI：10.1039/c39900000904

  日期：——

  The incorporation of the novel dipeptide mimic (1), synthesized via Boc-L-cyclohexylalaninol (Boc = t-butoxycarbonyl), into a dipeptide sequence has led to a very potent renin inhibitor.

  通过Boc- L-环己基丙氨醇（Boc =叔丁氧羰基）合成的新型二肽模拟物（1）掺入二肽序列已产生非常有效的肾素抑制剂。
• Difluorocyclostatine containing polypeptides
  申请人：PFIZER INC.

  公开号：EP0222523A2

  公开（公告）日：1987-05-20

  Polypeptides and derivatives thereof containing 2,2-difluorocyclostatine are useful for inhibiting the angiotensinogen-cleaving action of the enzyme renin.

  含有 2,2-二氟环司他丁的多肽及其衍生物可用于抑制肾素酶的血管紧张素原分解作用。