CN113831266B - 1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸烷基酯的合成 - Google Patents
1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸烷基酯的合成 Download PDFInfo
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- CN113831266B CN113831266B CN202111286693.1A CN202111286693A CN113831266B CN 113831266 B CN113831266 B CN 113831266B CN 202111286693 A CN202111286693 A CN 202111286693A CN 113831266 B CN113831266 B CN 113831266B
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- difluorophenyl
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- -1 alkyl 1- (2, 5-difluorophenyl) -1-oxopent-4-yn-2-ylcarbamate Chemical compound 0.000 title claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 title description 4
- 238000003786 synthesis reaction Methods 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 30
- 239000007858 starting material Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- AGCKPXKIFBRPNH-UHFFFAOYSA-N FC1=C(C=C(C=C1)F)C(CNC(OCC1=CC=CC=C1)=O)=O Chemical compound FC1=C(C=C(C=C1)F)C(CNC(OCC1=CC=CC=C1)=O)=O AGCKPXKIFBRPNH-UHFFFAOYSA-N 0.000 claims description 6
- PGQUJFJJZNGBAU-UHFFFAOYSA-N prop-2-ynyl ethanesulfonate Chemical group CCS(=O)(=O)OCC#C PGQUJFJJZNGBAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 3
- DSCFEUSVCPXFNP-UHFFFAOYSA-N [1-(2,5-difluorophenyl)-1-oxopent-4-yn-2-yl]carbamic acid Chemical compound OC(=O)NC(CC#C)C(=O)C1=CC(F)=CC=C1F DSCFEUSVCPXFNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 229910000102 alkali metal hydride Inorganic materials 0.000 claims 1
- 150000008046 alkali metal hydrides Chemical class 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000005580 one pot reaction Methods 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000000543 intermediate Substances 0.000 description 5
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 4
- KQQLWLNTFZWZBD-UHFFFAOYSA-N FC1=C(C=C(C=C1)F)C(C(CC#C)NC(OCC1=CC=CC=C1)=O)=O Chemical compound FC1=C(C=C(C=C1)F)C(C(CC#C)NC(OCC1=CC=CC=C1)=O)=O KQQLWLNTFZWZBD-UHFFFAOYSA-N 0.000 description 4
- 239000003480 eluent Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000010898 silica gel chromatography Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 102000016622 Dipeptidyl Peptidase 4 Human genes 0.000 description 2
- 101000930822 Giardia intestinalis Dipeptidyl-peptidase 4 Proteins 0.000 description 2
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 2
- OWAHJGWVERXJMI-UHFFFAOYSA-N prop-2-ynyl methanesulfonate Chemical group CS(=O)(=O)OCC#C OWAHJGWVERXJMI-UHFFFAOYSA-N 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- VVVOJODFBWBNBI-UHFFFAOYSA-N 2,5-difluorobenzaldehyde Chemical compound FC1=CC=C(F)C(C=O)=C1 VVVOJODFBWBNBI-UHFFFAOYSA-N 0.000 description 1
- XCRCSPKQEDMVBO-UHFFFAOYSA-N 2-bromo-1,4-difluorobenzene Chemical compound FC1=CC=C(F)C(Br)=C1 XCRCSPKQEDMVBO-UHFFFAOYSA-N 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000008589 Obesity Diseases 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 208000001072 type 2 diabetes mellitus Diseases 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C269/06—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups by reactions not involving the formation of carbamate groups
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明提供了奥格列汀中间体的制备方法,包括,将原料A 2‑(2,5‑二氟苯基)‑2‑氧代乙基氨基甲酸烷基酯,与原料B烷基磺酸炔丙酯反应,得到产物C1‑(2,5‑二氟苯基)‑1‑氧代戊‑4‑炔‑2‑基氨基甲酸烷基酯。本发明独辟蹊径,选特定的奥格列汀中间体作为攻关方向,提供了一种高效的工艺,一步反应收率可高达96%。
Description
技术领域
本发明涉及一种奥格列汀中间体的制备方法。
背景技术
奥格列汀是一种新型二肽基肽酶-IV(DP-IV)抑制剂,可用于治疗2型糖尿病、肥胖和高血压。
自Merck公开该药品以来,经全面检索,全球已有数十族专利披露了其合成工艺,有的需要许多合成步骤、使用相当昂贵的起始材料例如2,5-二氟苯甲醛或2-溴-1,4-二氟苯、制备Weinreb酰胺和使用羰基二咪唑(CDI)。有的反应特别耗时。
CN105392772B公开了多种奥格列汀中间体及其进一步合成下游产物的工艺,但部分工艺存在收率不高等问题。
发明内容
本发明独辟蹊径,选特定的奥格列汀中间体作为攻关方向,提供了一种高效的工艺。
为达到上述目的,本发明采用的技术方案为:
一种奥格列汀中间体的制备方法,包括,将原料A 2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸烷基酯,与原料B烷基磺酸炔丙酯反应,得到产物C 1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸烷基酯。
任选地,所述原料B为甲磺酸炔丙酯或乙磺酸炔丙酯。
任选地,所述原料A为2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯。
任选地,所述原料A与原料B的摩尔比为1:1.1-1.3,如为1:1.2。
任选地,所述反应在强碱存在下进行,所述强碱可为金属氢化物或醇金属,如为NaH或叔丁醇钾;强碱与原料A的摩尔比可为1.4:1。
任选地,所述反应在有机溶剂中进行,如在非质子极性溶剂中进行,如DMF。
任选地,所述反应的温度为-20℃-50℃,如为-10℃-10℃,优选为0℃左右。
本发明的有益效果为:
本发明选特定的奥格列汀中间体作为攻关方向,克服了一些技术偏见,最终筛选得到一种高效的制备方法,发现路线不仅可用,而且产物后处理简单,纯度好,摩尔收率更可高达96%。
具体实施方式
实施例1:
向2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯(0.1mmol)的二甲基甲酰胺(DMF)冰冷溶液中,添加NaH(0.14mmol),溶液在冰浴下留置20分钟;继续向溶液添加乙磺酸炔丙酯(0.11mmol),冰浴下搅拌混合物2h。加10ml水并用Et2O(3×5ml)萃取,所得有机相浓缩后,经硅胶层析(洗脱液为环己烷/醚)纯化,得到白色固体产物31.3mg,1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸苄酯的摩尔收率为91%。1H-NMR(CDCl3),δ:
7.55-7.59(m,1H),7.23-7.39(m,6H),7.12-7.18(m,1H),6.03(d,1H),5.28-5.34(m,1H),5.14(s,2H),3.00(dm,1H),2.71(dm,,1H),2.00(t,1H)。
实施例2:
向2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯(0.1mmol)的二甲基甲酰胺(DMF)冰冷溶液中,添加NaH(0.14mmol),溶液在冰浴下留置20分钟;继续向溶液添加甲磺酸炔丙酯(0.11mmol),冰浴下搅拌混合物2h。加10ml水并用Et2O(3×5ml)萃取,所得有机相浓缩后,经硅胶层析(洗脱液为环己烷/醚)纯化,得到白色固体产物27.9mg,1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸苄酯的摩尔收率为81%。
实施例3:
向2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯(0.1mmol)的二甲基甲酰胺(DMF)冰冷溶液中,添加NaH(0.14mmol),溶液在冰浴下留置20分钟;继续向溶液添加乙磺酸炔丙酯(0.12mmol),冰浴下搅拌混合物2h。加10ml水并用Et2O(3×5ml)萃取,所得有机相浓缩后,经硅胶层析(洗脱液为环己烷/醚)纯化,得到白色固体产物33.0mg,1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸苄酯的摩尔收率为96%。
实施例4:
向2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯(0.1mmol)的二甲基甲酰胺(DMF)冰冷溶液中,添加NaH(0.14mmol),溶液在冰浴下留置20分钟;继续向溶液添加乙磺酸炔丙酯(0.13mmol),冰浴下搅拌混合物2h。加10ml水并用Et2O(3×5ml)萃取,所得有机相浓缩后,经硅胶层析(洗脱液为环己烷/醚)纯化,得到白色固体产物31.7mg,1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸苄酯的摩尔收率为92%。
Claims (1)
1.合成产物C 1-(2,5-二氟苯基)-1-氧代戊-4-炔-2-基氨基甲酸烷基酯的方法,包括,将原料A 2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸烷基酯,与原料B烷基磺酸炔丙酯反应,得到所述产物C,其特征是,所述原料B为乙磺酸炔丙酯,所述原料A为2-(2,5-二氟苯基)-2-氧代乙基氨基甲酸苄酯,所述原料A与原料B的摩尔比为1:1.2;所述反应在强碱金属氢化物NaH存在下进行,所述强碱与原料A的摩尔比为1.4:1,所述反应在有机溶剂中进行,所述有机溶剂为二甲基甲酰胺,所述反应的温度为0℃左右。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103987388A (zh) * | 2011-06-29 | 2014-08-13 | 默沙东公司 | 二肽基肽酶-iv抑制剂的新晶形 |
CN105392772A (zh) * | 2014-03-20 | 2016-03-09 | 意大利合成制造有限公司 | 奥格列汀的关键中间体的制备方法 |
CN105985357A (zh) * | 2015-02-12 | 2016-10-05 | 北京赛林泰医药技术有限公司 | 取代的氨基六元饱和杂脂环类长效dpp-iv抑制剂 |
CN107325020A (zh) * | 2017-06-22 | 2017-11-07 | 广西科技大学 | 奥格列汀中间体的制备方法 |
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- 2019-01-22 CN CN201910056196.9A patent/CN109651203B/zh active Active
- 2019-01-22 CN CN202111286693.1A patent/CN113831266B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103987388A (zh) * | 2011-06-29 | 2014-08-13 | 默沙东公司 | 二肽基肽酶-iv抑制剂的新晶形 |
CN105392772A (zh) * | 2014-03-20 | 2016-03-09 | 意大利合成制造有限公司 | 奥格列汀的关键中间体的制备方法 |
CN105985357A (zh) * | 2015-02-12 | 2016-10-05 | 北京赛林泰医药技术有限公司 | 取代的氨基六元饱和杂脂环类长效dpp-iv抑制剂 |
CN107325020A (zh) * | 2017-06-22 | 2017-11-07 | 广西科技大学 | 奥格列汀中间体的制备方法 |
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马林等著.生物有机化学.高等教育出版社出版,1998,第51页. * |
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