CN109963837A - 2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯及制备方法 - Google Patents

2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯及制备方法 Download PDF

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CN109963837A
CN109963837A CN201780070404.XA CN201780070404A CN109963837A CN 109963837 A CN109963837 A CN 109963837A CN 201780070404 A CN201780070404 A CN 201780070404A CN 109963837 A CN109963837 A CN 109963837A
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hydrazine
pyridine
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K·格雷
Q·杨
N·R·巴比吉
Y·郝
J·伦加
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Corteva Agriscience LLC
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    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
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    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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Abstract

本申请提供用于制备2‑氨基硫代甲酰基‑2‑(3‑(5‑(4‑氰基苯氧基)吡啶‑2‑基)‑2‑(2,4‑二氟苯基)‑3,3‑二氟‑2‑羟基丙基)肼‑1‑甲酸叔丁酯的方法。

Description

2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2- (2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯及 制备方法
相关申请的交叉引用
本申请根据35U.S.C.§119(e)要求2016年11月18日提交的美国临时专利申请U.S.S.N.62/423,858的优先权,将其整个内容通过引用并入本申请。
技术领域
本申请提供2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯及制备方法。
背景技术
美国专利申请序列号62/163,106特别描述了某些金属酶抑制剂化合物及其作为杀真菌剂的用途。本申请的公开内容明确地通过引用并入本申请。该专利申请描述了产生抑制金属酶的杀真菌剂的各种途径。可以有利的是提供用于制备金属酶抑制杀真菌剂和相关化合物的较直接和有效的方法,例如通过使用提供改善的时间和成本效率的试剂和/或化学中间体来制备。
发明内容
本申请提供化合物2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(I),其对于制备某些金属酶抑制剂化合物及其制备方法是有用的。在一种实施方式中,本申请提供用于制备式I化合物的方法:
所述方法包括将式II化合物与有机异硫氰酸酯接触,然后与裂解试剂接触
在另一实施方式中,式II化合物可以如下制备:将式III化合物与肼基甲酸叔丁酯接触
本申请的另一方面是本发明方法中制备的新型中间体,即,包含以下物质的化合物:
a)
b)
c)
其中R=苯甲酰基或Me3Si。
术语"卤素"或"卤代"是指一种或多种卤素原子,其定义为F、Cl、Br和I。
术语"有机金属"是指含有金属的有机化合物,特别是其中金属原子直接键合至碳原子的化合物。
室温(RT)在本申请定义为约20℃至约25℃。
在整个公开内容中,提及式I-III化合物(包括Ia和Ib)理解为也包括光学异构体和盐。具体地,当式I-III化合物含有手性碳时,应理解为这些化合物包括其光学异构体和消旋体。示例性盐可包括:盐酸盐,氢溴酸盐,氢碘酸盐等。
本申请中公开的某些化合物可以作为一种或多种异构体存在。本领域技术人员将会理解,一种异构体可能比其它异构体更具活性。为清楚起见,本申请中公开的结构仅以一种几何形式绘制,但意在代表分子的所有几何形式和互变异构形式。
上述实施方式意在仅是示例性的,本领域技术人员将会认识到或将能够确定使用不超过常规的实验,特定的方法、物质和步骤的众多等同物。所有这些等同物都认为落入本发明的范围内,并且为所附权利要求所涵盖。
具体实施方式
2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(I)可以由2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II)如实施例1中所示制备。
实施例1:制备2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(I)
方法A:在0℃向在THF(31.3mL)中的2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II)(5g,9.39mmol)加入异硫氰酸苯甲酰酯(1.199mL,8.92mmol)。30min后,加入另外的异硫氰酸苯甲酰酯(0.1mL,0.74mmol)。苯甲酰基中间体Ia通过LCMS(ESIMS m/z 696.1[(M+H)+])鉴定。另外30min后,加入无水肼(1.47mL,46.9mmol)。将混合物在0℃搅拌1h,然后在室温搅拌30min。将反应用乙酸乙酯稀释并且用饱和氯化铵洗涤。将有机层经无水硫酸钠干燥,过滤,浓缩,得到淡黄色油状物。将甲醇(25mL)加入油状物中,搅拌几分钟后,形成白色沉淀。将浆液过滤,将固体用甲醇漂洗,得到2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(I)(4.29g,7.25mmol,77%收率),为白色固体。1H NMR(400MHz,DMSO-d6)δ8.76(s,1H),8.45(d,J=11.9Hz,2H),7.96-7.86(m,2H),7.70(dd,J=8.6,2.8Hz,2H),7.58(d,J=8.4Hz,1H),7.53 7.40(m,1H),7.22-7.15(m,2H),7.12(t,J=11.0Hz,1H),7.01(d,J=8.8Hz,1H),6.37(s,1H),5.45(d,J=15.7Hz,1H),4.47(d,J=15.3Hz,1H),1.40(s,9H)。19F NMR(376MHz,DMSO-d6)δ-104.72(d,J=122.8Hz),-107.49--109.12(m),-111.08--111.85(m)。ESIMS m/z 592.2[(M+H)+]。
方法B:向2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II,1g,1.596mmol)在乙酸乙酯(9.4mL)中的溶液加入异硫氰酸根合三甲基硅烷(0.540mL,3.83mmol),将反应在80℃搅拌18h。NMR表明转化不完全,因此加入另外的异硫氰酸根合三甲基硅烷(0.540mL,3.83mmol),将反应在80℃搅拌6h。NMR表明反应仍然不完全,因此加入较多的异硫氰酸根合三甲基硅烷(0.540mL,3.83mmol),将反应在80℃搅拌17h。使得反应冷却至室温,加入1N HCl(10mL)。分离各相,将有机层用无水硫酸钠干燥,过滤,浓缩,得到黄色泡沫状物。将黄色泡沫状物溶解在二氯甲烷中,并且通过硅胶柱色谱用0-60%乙酸乙酯/己烷洗脱进行纯化。收集含有级分的产物,浓缩,得到2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(I)为黄色泡沫状物(460mg,0.778mmol,49%收率)。分析数据与先前得到的样品一致。
用于该方法步骤的有机异硫氰酸酯可包括异硫氰酸酰基酯,例如异硫氰酸苯甲酰酯(制备式Ia的化合物);和异硫氰酸甲硅烷酯,例如异硫氰酸三甲基甲硅烷酯(制备式Ib的化合物)。
用于除去来自式Ia化合物的R基团以制备式I化合物的裂解试剂可以选自包括以下物质的组:肼、氨、甲醇钠和甲胺。用于除去来自式Ib化合物的R基团以制备式I化合物的裂解试剂可以选自:a)氟化物化合物,例如四烷基氟化铵和氟化钾;和b)酸,例如盐酸(HCl)、氢溴酸(HBr)或硫酸(H2SO4)。
式II化合物与有机异硫氰酸酯的接触可以在约-20℃和约100℃之间进行,式II化合物与裂解试剂的接触可以在约-20℃和约100℃之间进行。
用于该方法步骤的溶剂可包括以下物质中的一种或多种:THF(四氢呋喃)、EtOAc、2-Me-THF、二氧六环、MeCN(乙腈)和DME(1,2-二甲氧基乙烷)。
2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II)可以由4-((6-((2-(2,4-二氟苯基)环氧乙烷-2-基)二氟甲基)吡啶-3-基)氧基)苯甲腈(III)如实施例2中所示制备。
实施例2:制备2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II)
向4-((6-((2-(2,4-二氟苯基)环氧乙烷-2-基)二氟甲基)吡啶-3-基)氧基)苯甲腈(III)(5g,12.49mmol)在乙醇(40mL)中的浆液加入肼基甲酸叔丁酯(4.13g,31.2mmol),将反应在80℃加热24h,此时起始的环氧化物(III)完全耗尽。使得反应冷却至45℃并且用产物II的晶体接种,导致反应呈云状物。加入另外的乙醇(40mL),将反应冷却至室温过夜。将所得浆液用冰浴冷却30min,过滤。将固体用乙醇(30mL)漂洗并且在真空下干燥,得到2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯(II)为白色固体(5.42g,9.67mmol,77%收率)。1H NMR(400MHz,CDCl3)δ8.37(d,J=2.7Hz,1H),7.72-7.64(m,2H),7.55(td,J=8.8,6.6Hz,1H),7.48(d,J=8.6Hz,1H),7.37(dd,J=8.7,2.7Hz,1H),7.10-7.02(m,2H),6.77(dddd,J=20.9,11.4,8.6,2.6Hz,2H),3.83(d,J=13.7Hz,1H),3.74(dd,J=13.4,2.8Hz,1H),1.41(s,9H)。19F NMR(376MHz,CDC13)δ-105.15,-108.68(d,J=22.1Hz),-109.24,-110.29。ESIMS m/z 533.1[(M+H)+]。
式III化合物与肼基甲酸叔丁酯的接触可以在约25℃至约100℃或约60℃至约90℃进行。
在该方法步骤中使用的溶剂可包括醇,例如甲醇、乙醇和异丙醇;以及非质子溶剂,例如THF(四氢呋喃)、乙腈、DMSO(二甲亚砜)、DMF(N,N-二甲基甲酰胺);以及这些溶剂中任一种的混合物。

Claims (11)

1.制备式I化合物的方法,
所述方法包括:
将式II化合物
与有机异硫氰酸酯和裂解试剂接触。
2.权利要求1的方法,其中所述有机异硫氰酸酯为异硫氰酸酰基酯或异硫氰酸甲硅烷酯。
3.权利要求2的方法,其中所述异硫氰酸酰基酯为异硫氰酸苯甲酰酯。
4.权利要求2的方法,其中所述异硫氰酸甲硅烷酯为异硫氰酸三甲基甲硅烷酯。
5.权利要求1的方法,其中所述裂解试剂选自包括以下物质的组:肼、氨、甲醇钠、甲胺、氟化物化合物和酸。
6.权利要求1的方法,其中与有机异硫氰酸酯接触在约-20℃和约100℃之间进行。
7.权利要求1的方法,其中与裂解试剂接触在约-20℃和约100℃之间进行。
8.权利要求1的方法,其进一步包括以下步骤:
将式III化合物
与肼基甲酸叔丁酯接触以制备式II化合物。
9.权利要求8的方法,其进一步包括选自包括以下物质的组的溶剂:甲醇、乙醇、异丙醇、THF、乙腈、DMSO、DMF及其混合物。
10.权利要求8的方法,其中与肼基甲酸叔丁酯接触在约25℃和约100℃之间进行。
11.化合物,其选自:
a)
b)
c)
其中R=苯甲酰基或Me3Si。
CN201780070404.XA 2016-11-18 2017-11-17 2-氨基硫代甲酰基-2-(3-(5-(4-氰基苯氧基)吡啶-2-基)-2-(2,4-二氟苯基)-3,3-二氟-2-羟基丙基)肼-l-甲酸叔丁酯及制备方法 Pending CN109963837A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004018485A1 (en) * 2002-08-26 2004-03-04 Ranbaxy Laboratories Limited Azole derivatives as antifungal agents
WO2005066164A1 (en) * 2003-12-22 2005-07-21 Eli Lilly And Company Opioid receptor antagonists
WO2005092836A1 (en) * 2004-03-15 2005-10-06 Eli Lilly And Company Opioid receptor antagonists
WO2015143188A1 (en) * 2014-03-19 2015-09-24 Viamet Pharmaceuticals, Inc. 2-(2,4-difluorophenyl)-1,1-difluoro-1-(5-substituted-pyridin-2-yl)-3-(1h-tetrazol-1-yl)propan-2-ols and proceses for their preparation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2446879A1 (en) * 2001-05-11 2002-11-21 Vertex Pharmaceuticals Incorporated 2,5-disubstituted pyridine, pyrimidine, pyridazine and 1, 2, 4-triazine derivatives for use as p38 inhibitors
BR112017024463B1 (pt) * 2015-05-18 2023-01-24 Mycovia Pharmaceuticals, Inc Compostos antifúngicos, seu uso, processos de preparação e composições agrícolas
BR112019009788A2 (pt) * 2016-11-18 2019-08-06 Dow Agrosciences Llc 4-((6-(2-(2,4-difluorofenil)-1,1-difluoro-2-hidróxi-3-(5-merc apto-1h-1,2,4-triazol-1-il)propil)piridin-3-il)óxi)benzonitrila e processos de preparação
BR112019009812A2 (pt) * 2016-11-18 2019-08-13 Dow Agrosciences Llc 4-((6-(2-(2,4-difluorofenil)-1,1-difluoro-2-hidróxi-3-(5-mercapto-1h-1,2,4-triazol-1-il)propil)piridin-3-il)óxi)benzonitrila e processos de preparação

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004018485A1 (en) * 2002-08-26 2004-03-04 Ranbaxy Laboratories Limited Azole derivatives as antifungal agents
WO2005066164A1 (en) * 2003-12-22 2005-07-21 Eli Lilly And Company Opioid receptor antagonists
WO2005092836A1 (en) * 2004-03-15 2005-10-06 Eli Lilly And Company Opioid receptor antagonists
WO2015143188A1 (en) * 2014-03-19 2015-09-24 Viamet Pharmaceuticals, Inc. 2-(2,4-difluorophenyl)-1,1-difluoro-1-(5-substituted-pyridin-2-yl)-3-(1h-tetrazol-1-yl)propan-2-ols and proceses for their preparation

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