CN114436912B - 一种碳氮轴手性磺酰胺类化合物及其合成方法和应用 - Google Patents

一种碳氮轴手性磺酰胺类化合物及其合成方法和应用 Download PDF

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CN114436912B
CN114436912B CN202210075727.0A CN202210075727A CN114436912B CN 114436912 B CN114436912 B CN 114436912B CN 202210075727 A CN202210075727 A CN 202210075727A CN 114436912 B CN114436912 B CN 114436912B
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陈芬儿
陆银杰
肖霄
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Zhejiang University of Technology ZJUT
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Abstract

本发明公开了一种碳氮轴手性磺酰胺类化合物及其合成方法和应用,具体操作方式为以苯磺酰胺和MBH碳酸酯或联烯酯反应,在金鸡纳碱衍生物催化剂作用下,在碱和有机溶剂作用下,合成碳氮轴手性磺酰胺类化合物。本发明可在空气条件下进行,具有反应条件温和、原料廉价易得、合成方法和提纯方法简单、产率较高等优势,利用本方法所合成的轴手性磺酰胺化合物ee值最高为99%,收率高达99%。

Description

一种碳氮轴手性磺酰胺类化合物及其合成方法和应用
本发明属于有机化合物工艺应用技术领域,具体涉及一种碳氮轴手性磺酰胺类化合物及其合成方法和应用。
背景技术
含碳氮手性轴结构的有机化合物是一类非常重要的化合物,其广泛存在于天然产物、药物、农药、配体和有机催化剂中(如下所示),因此从一些结构简单、商业易得的化合物构建碳氮轴手性化合物显得尤为重要。
Figure BDA0003483912450000011
轴手性联芳基化合物已经建立了许多实用的路线如:芳基-芳基偶联、手性转移、动力学拆分和去对称化等。与构建光学纯的联萘酚及其衍生物的众多方法相比,形成碳氮轴手性酰胺类化合物的不对称催化方法仍不发达。现有的方法有传统拆分法、芳基氧化偶联法、动力学拆分法和对映体选择性转化法,通常需要化学计量量的手性试剂或额外的步骤来制备催化剂且反应成本高,对映选择性低,底物适用范围狭窄。鉴于轴手性酰胺类化合物的重要性及其有限的合成路线,发展一种底物适用范围广泛、催化剂便宜易获得且能得到光学纯碳氮轴手性酰胺类化合物的方法是非常有必要的。
发明内容
针对上述问题,本发明的目的在于提供了一种碳氮轴手性磺酰胺类化合物及其合成方法和应用。本发明研究发现MBH碳酸酯或联烯酯是一类常用于构建手性的化合物,它们具有稳定、易制备、价格便宜等特点,鉴于此,本发明通过使用金鸡纳碱衍生物类催化剂,通过苯磺酰胺与MBH碳酸酯或联烯酯的烷基化反应来制备光学纯的碳氮轴手性磺酰胺类化合物。本发明提出一种碳氮轴手性苯磺酰胺类化合物,其结构如式(3)所示,
Figure BDA0003483912450000021
其中,其中,R1,R2,R3分别选自氢、卤素、烷烃、酯基,优选为;氢、溴、碘、甲基或甲酯
R4选自取代苯环、烷烃;烷烃优选为乙基,取代苯环的取代基优选为甲基、硝基或氯;
R5选自烷烃、苄基,优选为甲基、正丁基、叔丁基、苄基。
进一步地,式(3)所示的化合物的对映体过量为90%以上。
一种碳氮轴手性磺酰胺类化合物的合成方法,以式(1)所示的苯磺酰胺和式(2)所示的MBH碳酸酯为反应原料,在金鸡纳碱衍生物催化剂作用下,在有机溶剂中,在碱的环境中,反应得到如式(3)所示的碳氮轴手性磺酰胺类化合物,反应过程如下:
Figure BDA0003483912450000022
其中,R1,R2,R3分别选自卤素、烷烃、酯基,优选为;溴、碘、甲基、乙基或甲酯;
R4选自取代苯环、烷烃;烷烃优选为乙基,取代苯环的取代基优选为甲基、硝基或氯;
R5选自烷烃、苄基,优选为甲基、正丁基、叔丁基、苄基。
进一步地,所述起始原料式(1)所示的苯磺酰胺和式(2)所示的MBH碳酸酯用量的摩尔比例为1.0:1.2-1.0:2.0,优选地,两者用量的摩尔比例为1.0:1.4。
进一步地,所述金鸡纳碱类衍生物催化剂是Hydroquinine、β-ICD、Quinine、Cinchonine、Cinchonidine、(DHQD)2AQN、(DHQD)2Pyr、(DHQD)2PHAL、(DHQ)2AQN、(DHQ)2Pyr、(DHQ)2PHAL,优选地,所述金鸡纳碱类衍生物催化剂是β-ICD,所述催化剂的用量为原料式(1)所示的苯磺酰胺的1-40mol%。优选地所述催化剂的用量为原料式(1)所示的苯磺酰胺的1.0mol%。
进一步地,所述碱是碳酸钾、碳酸钠、碳酸锂、碳酸氢钾、碳酸氢钠、磷酸钾、磷酸氢二钾、碳酸铯,优选地,所述碱为碳酸铯,所述碱的用量为原料式(1)的0-2.0当量,优选地,所述碱的用量为原料式(1)的1.0当量。
进一步地,所述有机溶剂是甲苯、四氢呋喃、氯仿、乙醚、乙酸乙酯、乙腈、氯苯、溴苯、、氟苯、碘苯、正己烷、丙酮、三氟甲苯、均三甲苯、邻二甲苯、间二甲苯。优选地,为均三甲苯。
进一步地,所述反应是在-50-30℃进行的,优选地,反应的温度为-30℃。
一种碳氮轴手性磺酰胺类化合物,其结构式如式(5)所示
Figure BDA0003483912450000031
其中,R1,R2,R3分别选自氢、卤素、烷烃、酯基,优选为氯、碘、甲基或甲酯;
R6选自取代苯环、烷烃、萘环,烷烃优选为甲基,取代苯环的取代基优选为碘、叔丁基、三氟甲基或甲基;
R7选自烷烃、苄基、二苯基,优选为甲基、异丙基、正丁基、叔丁基、苄基或二苯基。
一种碳氮轴手性磺酰胺类化合物的合成方法,利用式(1)所示的苯磺酰胺与式(4)所示的联烯酯为反应原料,在金鸡纳碱衍生物催化剂作用下,在反应溶剂中反应得到如式(5)所示碳氮轴手性磺酰胺类化合物,反应方程式如下
Figure BDA0003483912450000041
其中,R1,R2,R3分别选自氢、卤素、烷烃、酯基,优选为氯、碘、甲基或甲酯;
R6选自取代苯环、烷烃、萘环,烷烃优选为甲基,取代苯环的取代基优选为碘、叔丁基、三氟甲基或甲基;
R7选自烷烃、苄基、二苯基,优选为甲基、异丙基、正丁基、叔丁基、苄基或二苯基。
进一步地,所述起始原料式(1)所示的苯磺酰胺和式(4)所示的联烯酯用量的摩尔比例为1.0:1.0-1.0:5.0,优选地,两者用量的摩尔比例为1.0:1.4。
进一步地,所述金鸡纳碱类衍生物催化剂是Hydroquinine、β-ICD、Quinine、Cinchonine、Cinchonidine、(DHQD)2AQN、(DHQD)2Pyr、(DHQD)2PHAL、(DHQ)2AQN、(DHQ)2Pyr、(DHQ)2PHAL。优选地,所述金鸡纳碱类衍生物催化剂是β-ICD,所述催化剂的用量为原料式(1)所示的苯磺酰胺的1-40mol%,优选地所述催化剂的用量为原料式(1)所示的苯磺酰胺的10.0mol%。
进一步地,所述碱是碳酸钾、碳酸钠、碳酸锂、碳酸氢钾、碳酸氢钠、磷酸钾、磷酸氢二钾、磷酸钾、碳酸铯,优选地,所述碱为碳酸铯。所述碱的用量为原料式(1)的0-4.0当量,优选地,所述碱的用量为原料式(1)的1.0当量。
进一步地,所述有机溶剂是甲苯、四氢呋喃、氯仿、乙醚、乙酸乙酯、乙腈、氯苯、溴苯、氟苯、碘苯、正己烷、丙酮、三氟甲苯、均三甲苯、邻二甲苯、间二甲苯,优选地,为均三甲苯。
进一步地,所述反应是在-78-30℃进行的,优选地,反应的温度为-50℃。
本发明的有益效果在于:
1)反应高效,收率高,对映选择性高;
2)条件温和,可在空气条件下进行反应,简单易得、价格便宜、性状稳定、无刺激性气味;
3)手性催化剂廉价易得且用量仅为式(1)的1mol%,经济实用,对环境友好;
4)反应溶剂为有机溶剂,绿色无毒,以商业易得的苯磺酰胺及制备简便的MBH或者联烯酯碳酸酯为反应原料,在金鸡纳碱衍生物催化剂的作用下,反应得光学纯的碳氮轴手性磺酰胺类化合物,本发明所得的碳氮轴手性磺酰胺类化合物可作为生物活性化合物、手性药物、手性配体和手性催化剂的结构砌块。
具体实施方式
结合以下具体实施例,对本发明作进一步的详细说明,本发明的保护内容不局限于以下实施例。在不背离发明构思的精神和范围下,本领域技术人员能够想到的变化和优点都被包括在本发明中,并且以所附的权利要求书为保护范围。实施本发明的过程、条件、试剂、实验方法等,除以下专门提及的内容之外,均为本领域的普遍知识和公知常识,本发明没有特别限制内容。以下实施例所给出的数据包括具体操作和反应条件及产物,产物纯度通过核磁鉴定。
实施例1
化合物3a的合成:
Figure BDA0003483912450000051
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2a(1.4mmol,221mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3a(94%yield,90%ee),(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ77.75(d,J=8.2Hz,2H),7.50(s,1H),7.29(d,J=8.2Hz,2H),6.98(s,1H),6.27(d,J=0.8Hz,1H),5.76(s,1H),4.57(d,J=14.2Hz,1H),4.51(d,J=14.2Hz,1H),3.55(s,3H),2.42(s,3H),2.22(s,3H),2.16(s,3H).13C NMR(100MHz,CDCl3)δ166.5,143.5,141.8,139.8,139.0,138.2,137.1,135.4,132.2,131.9,129.4,128.3,100.8,51.9,50.0,21.5,20.3,20.2.HRMS(ESI)m/zCalcd for[C20H22INO4S,M+H]+:500.0387;Found:500.0391.
实施例2
化合物3b的合成:
Figure BDA0003483912450000061
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2b(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3b(94%yield,91%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.66(d,J=8.2Hz,2H),7.42(s,1H),7.20(d,J=8.2Hz,2H),6.92(s,1H),6.18(d,J=0.9Hz,1H),5.73(s,1H),4.50(d,J=14.3Hz,1H),4.39(d,J=14.3Hz,1H),2.35(s,3H),2.15(s,3H),2.14(s,3H),1.24(s,9H).13C NMR(100MHz,CDCl3)δ165.1,143.4,142.4,139.8,139.0,138.5,137.2,132.2,131.2,129.4,128.3,100.3,81.0,49.7,27.7,21.5,20.5,20.3.HRMS(ESI)m/z Calcd for[C23H28INO4S,M+Na]+:564.0676;Found:564.0681.
实施例3
化合物3c的合成:
Figure BDA0003483912450000062
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3c(97%yield,>99%ee),(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.74(d,J=8.3Hz,2H),7.49(s,1H),7.28(d,J=8.3Hz,2H),6.98(s,1H),6.29(d,J=0.9Hz,1H),5.83(s,1H),4.58(d,J=14.3Hz,1H),4.51(d,J=14.3Hz,1H),4.04–3.85(m,2H),2.41(s,3H),2.22(s,3H),2.17(s,3H),1.50–1.41(m,2H),1.28(dq,J=14.4,7.3Hz,2H),0.88(t,J=7.3Hz,3H).13CNMR(100MHz,CDCl3)δ166.1,143.4,142.1,139.8,139.0,138.4,137.3,135.9,132.2,131.6,129.4,128.3,100.6,60.9,49.9,21.5,20.3,20.3,13.8.HRMS(ESI)m/z Calcd for[C23H28INO4S,M+Na]+:564.0676;Found:564.0677.
实施例4
化合物3d的合成:
Figure BDA0003483912450000071
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2d(1.4mmol,328mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3d(94%yield,91%ee),(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.64(d,J=8.3Hz,2H),7.35(d,J=0.6Hz,1H),7.27–7.20(m,3H),7.19–7.13(m,4H),6.83(d,J=0.6Hz,1H),6.25(d,J=0.8Hz,1H),5.76(s,1H),4.98(d,J=12.4Hz,1H),4.88(d,J=12.4Hz,1H),4.50(d,J=14.3Hz,1H),4.45(d,J=14.3Hz,1H),2.32(s,3H),2.10(s,3H),2.03(s,3H).13C NMR(100MHz,CDCl3)δ165.8,143.4,141.8,139.7,139.0,138.1,137.2,135.6,135.4,132.1,132.1,129.4,128.3,128.2,128.1,128.1,100.7,66.6,50.0,21.5,20.3,20.2.HRMS(ESI)m/z Calcd for[C26H26INO4S,M+Na]+:598.0519;Found:598.0523.
实施例5
化合物3e的合成:
Figure BDA0003483912450000081
氮气氛围下,在烧瓶中加入1b(1mmol,513mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3e(92%yield,83%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)8.00(d,J=1.6Hz,1H),7.73(d,J=8.2Hz,2H),7.52(d,J=1.6Hz,1H),7.30(d,J=8.2Hz,2H),6.33(s,1H),5.88(s,1H),4.56(d,J=14.3Hz,1H),4.49(d,J=14.3Hz,1H),4.00(dt,J=10.9,6.8Hz,1H),3.91(dt,J=10.9,6.8Hz,1H),2.43(s,3H),2.18(s,3H),1.50–1.41(m,2H),1.33–1.26(m,2H),0.90(t,J=7.3Hz,3H).13C NMR(100MHz,CDCl3)δ166.0,146.1,144.6,143.8,140.3,140.2,138.0,135.7,132.0,129.6,128.3,101.9,94.8,65.0,50.0,30.3,21.6,20.2,19.1,13.7.HRMS(ESI)m/z Calcd for[C22H25I2NO4S,M+Na]+:675.9486;Found:675.9491.
实施例6
化合物3f的合成:
Figure BDA0003483912450000082
氮气氛围下,在烧瓶中加入1c(1mmol,339mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3f(95%yield,83%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.73(d,J=8.2Hz,2H),7.35(d,J=7.9Hz,1H),7.28(d,J=8.2Hz,2H),7.17(d,J=7.5Hz,1H),7.04(dd,J=7.9,7.5Hz,1H),6.28(s,1H),5.82(s,1H),4.62(d,J=14.3Hz,1H),4.47(d,J=14.3Hz,1H),4.00(dt,J=11.0,6.6Hz,1H),3.91(dt,J=11.0,6.6Hz,1H),2.43(s,3H),2.30(s,3H),1.52–1.43(m,2H),1.34–1.25(m,2H),0.89(t,J=7.3Hz,3H).13C NMR(100MHz,CDCl3)δ166.1,143.6,143.5,137.9,136.7,135.9,131.6,131.3,130.4,129.4,129.4,128.1,125.0,64.9,49.7,30.4,21.6,20.1,19.1,13.7.HRMS(ESI)m/z Calcd for[C22H26BrNO4S,M+Na]+:502.0658;Found:502.0662.
实施例7
化合物3g的合成:
Figure BDA0003483912450000091
氮气氛围下,在烧瓶中加入1d(1mmol,319mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3g(87%yield,70%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.64(dd,J=7.6,1.4Hz,1H),7.52(d,J=8.3Hz,2H),7.31(dd,J=7.6,1.4Hz,1H),7.25–7.22(m,1H),7.20(d,J=8.3Hz,2H),6.31(d,J=1.3Hz,1H),5.90(s,1H),4.64(d,J=14.6Hz,1H),4.58(d,J=14.6Hz,1H),3.90(t,J=6.7Hz,2H),3.54(s,3H),2.38(s,3H),1.94(s,3H),1.41–1.32(m,2H),1.26–1.16(m,2H),0.82(t,J=7.3Hz,3H).13C NMR(100MHz,CDCl3)δ166.8,166.4,143.0,140.9,138.1,136.9,135.0,132.6,131.1,129.4,128.1,127.5,64.7,51.9,51.8,30.3,21.5,19.0,18.9,13.6.HRMS(ESI)m/z Calcd for[C24H29NO6S,M+H]+:460.1788;Found:460.1783.
实施例8
化合物3h的合成:
Figure BDA0003483912450000101
氮气氛围下,在烧瓶中加入1e(1mmol,339mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3h(92%yield,97%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.54(s,1H),7.03(s,1H),6.22(s,1H),5.49(s,1H),4.69(d,J=14.0Hz,1H),4.19(d,J=14.0Hz,1H),4.16–3.96(m,2H),3.75–3.46(m,2H),2.38(s,3H),2.24(s,3H),1.61–1.54(m,2H),1.47(t,J=7.4Hz,3H),1.41–1.31(m,2H),0.92(t,J=7.4Hz,3H).13C NMR(100MHz,CDCl3)δ166.3,141.2,140.0,138.6,137.2,135.4,132.6,131.8,103.0,65.1,50.4,50.0,30.5,20.3,20.2,19.2,13.7,8.1.HRMS(ESI)m/z Calcd for[C18H26INO4S,M+Na]+:502.0519;Found:502.0523.
实施例9
化合物3i的合成:
Figure BDA0003483912450000102
氮气氛围下,在烧瓶中加入1f(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3i(78%yield,92%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR (400MHz,CDCl3)δ7.67–7.65(m,2H),7.50(s,1H),7.40–7.37(m,2H),6.99(s,1H),6.30(s,1H),5.85(s,1H),4.59(d,J=14.2Hz,1H),4.52(d,J=14.2Hz,1H),4.05–3.95(m,1H),3.95–3.85(m,1H),2.41(s,3H),2.23(s,3H),2.19(s,3H),1.51–1.42(m,2H),1.31–1.24(m,2H),0.89(t,J=7.3Hz,3H).13C NMR(100MHz,CDCl3)δ166.2,142.2,141.1,139.8,139.1,139.0,137.3,136.0,133.5,132.2,131.7,128.7,128.7,125.4,100.4,64.9,50.0,30.4,21.3,20.4,20.3,19.1,13.7.HRMS(ESI)m/z Calcd for[C23H28NO4S,M+Na]+:564.0676;Found:564.0681..
实施例10
化合物3j的合成:
Figure BDA0003483912450000111
氮气氛围下,在烧瓶中加入1g(1mmol,432mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3j(86%yield,89%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ8.34(d,J=8.5Hz,2H),8.05(d,J=8.5Hz,2H),7.49(s,1H),7.03(s,1H),6.31(s,1H),5.78(s,1H),4.65(d,J=14.1Hz,1H),4.57(d,J=14.1Hz,1H),4.09–3.98(m,1H),3.98–3.89(m,1H),2.25(s,3H),2.23(s,3H),1.55–1.44(m,2H),1.35–1.25(m,2H),0.89(t,J=7.3Hz,3H).13CNMR(100MHz,CDCl3)δ165.9,150.1,146.7,142.3,140.5,139.2,136.2,135.3,132.5,132.2,129.6,124.1,99.9,65.0,50.5,30.4,20.4,20.4,19.1,13.6.HRMS(ESI)m/z Calcd for[C22H25IN2O6S,M+Na]+:595.0370;Found:595.0373.
实施例11
化合物3k的合成:
Figure BDA0003483912450000121
氮气氛围下,在烧瓶中加入1h(1mmol,421mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,1mol%)和均三甲苯(10mL),将反应体系在-30℃条件下反应10min,随后往烧瓶中加入2c(1.4mmol,280mg,1.4equiv.),反应72小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3k(92%yield,92%ee)。(洗脱剂极性:石油醚/乙酸乙酯10:1)。1H NMR(400MHz,CDCl3)δ7.80(d,J=8.2Hz,2H),7.50(s,1H),7.47(d,J=8.2Hz,2H),7.00(s,1H),6.30(s,1H),5.80(s,1H),4.60(d,J=14.2Hz,1H),4.52(d,J=14.2Hz,1H),4.10–3.97(m,1H),3.97–3.88(m,1H),2.24(s,3H),2.21(s,3H),1.52–1.43(m,2H),1.34–1.25(m,2H),0.89(t,J=7.3Hz,3H).13CNMR(100MHz,CDCl3)δ166.1,142.2,140.1,139.7,139.2,139.2,136.9,135.7,132.4,131.9,129.8,129.1,100.2,65.0,50.2,30.4,20.4,20.3,19.1,13.7.HRMS(ESI)m/z Calcd for[C22H25ClINO4S,M+H]+:584.0130;Found:584.0132.
实施例12
化合物3l的合成:
Figure BDA0003483912450000122
氮气氛围下,在烧瓶中加入3c(1mmol,541mg,1equiv.)和二氯甲烷(15mL),反应体系在-78℃条件下反应10min,随后往烧瓶中加入DIBAL-H(3mmol,3mL,3equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物3l(86%yield,86%ee)。(洗脱剂极性:石油醚/乙酸乙酯3:1)。1H NMR(400MHz,CDCl3)δ7.69(d,J=8.2Hz,2H),7.51(s,1H),7.28(d,J=8.1Hz,2H),7.01(s,1H),5.06(s,1H),4.67(s,1H),4.43(d,J=14.0Hz,1H),4.29(dd,J=14.6,2.7Hz,2H),4.16(d,J=14.6Hz,1H),2.50(s,1H),2.42(s,3H),2.23(s,6H).13C NMR(100MHz,CDCl3)δ143.7,143.4,142.2,140.0,139.3,138.1,136.9,132.5,129.6,128.2,117.6,100.1,64.3,52.4,21.5,20.4,20.3.HRMS(ESI)m/z Calcd for[C19H22INO3S,M+Na]+:494.0257;Found:494.0258.
实施例13
化合物5a的合成:
Figure BDA0003483912450000131
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4a(1.4mmol,238mg,1.4equiv.),反应24小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5a(92%yield,85%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.78(d,J=8.2Hz,2H),7.51(s,1H),7.28(d,J=8.2Hz,2H),6.99(s,1H),5.03(d,J=14.6Hz,1H),4.93(d,J=14.6Hz,1H),4.54(s,2H),3.61(s,3H),2.42(s,3H),2.24(s,3H),2.19(s,3H).13CNMR(100MHz,CDCl3)δ216.2,166.2,143.4,141.9,139.8,138.9,138.2,137.3,132.1,129.3,128.3,101.4,96.0,79.2,52.4,48.7,21.5,20.3,20.2.HRMS(ESI)m/z Calcd for[C21H22INO4S,M+Na]+:534.0314;Found:534.0317.
实施例14
化合物5b的合成:
Figure BDA0003483912450000132
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4b(1.4mmol,277mg,1.4equiv.),反应24小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5b(95%yield,90%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.77(d,J=8.2Hz,2H),7.50(s,1H),7.28(d,J=8.2Hz,2H),6.99(s,1H),5.03(d,J=14.4Hz,1H),4.92(d,J=14.4Hz,1H),4.90–4.84(m,1H),4.64–4.46(m,2H),2.42(s,3H),2.23(s,3H),2.20(s,3H),1.14(d,J=6.3Hz,3H),1.11(d,J=6.3Hz,3H).13C NMR(100MHz,CDCl3)δ216.2,165.3,143.4,142.1,139.8,138.9,138.4,137.2,132.1,129.4,128.29,101.3,96.5,78.9,68.8,48.5,21.6,21.5,20.3,20.3.HRMS(ESI)m/z Calcd for[C23H26INO4S,M+Na]+:562.0627;Found:562.0630.
实施例15
化合物5c的合成:
Figure BDA0003483912450000141
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4c(1.4mmol,297mg,1.4equiv.),反应24小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5c(92%yield,90%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.77(d,J=8.3Hz,2H),7.51(d,J=0.9Hz,1H),7.28(d,J=8.3Hz,2H),6.99(d,J=0.9Hz,1H),5.05(d,J=14.5Hz,1H),4.94(d,J=14.5Hz,1H),4.63–4.47(m,2H),3.99(qt,J=10.8,6.7Hz,2H),2.42(s,3H),2.23(s,3H),2.20(s,3H),1.52-1.45(m,6.8Hz,2H),1.31-1.26(m,J=15.2,7.5Hz,2H),0.88(t,J=7.4Hz,3H).13C NMR(100MHz,CDCl3)δ216.2,165.8,143.4,141.9,139.8,138.9,138.3,137.4,132.0,129.4,128.3,101.4,96.3,79.1,65.2,48.6,30.4,21.6,20.3,20.2,19.0,13.7.HRMS(ESI)m/z Calcd for[C24H28INO4S,M+Na]+:576.0676;Found:576.0680.
实施例16
化合物5d的合成:
Figure BDA0003483912450000151
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4d(1.4mmol,297mg,1.4equiv.),反应24小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5d(94%yield,92%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.76(d,J=8.3Hz,2H),7.50(dd,J=1.4,0.5Hz,1H),7.27(d,J=8.3Hz,2H),6.99(dd,J=1.4,0.5Hz,1H),5.01(d,J=14.3Hz,1H),4.87(d,J=14.3Hz,1H),4.56(d,J=14.1Hz,1H),4.48(d,J=14.1Hz,1H),2.41(s,3H),2.23(s,3H),2.23(s,3H),1.32(s,9H).13C NMR(100MHz,CDCl3)δ216.3,164.8,143.3,142.2,139.8,138.9,138.5,137.4,132.1,129.3,128.3,101.1,97.5,81.2,78.6,48.5,27.7,21.5,20.3,20.3.HRMS(ESI)m/z Calcd for[C24H28INO4S,M+Na]+:576.0676;Found:576.0681.
实施例17
化合物5e的合成:
Figure BDA0003483912450000152
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4e(1.4mmol,344mg,1.4equiv.),反应24小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5e(91%yield,90%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.69(d,J=8.3Hz,2H),7.44–7.37(m,1H),7.28–7.14(m,7H),6.86(m,1H),5.03(d,J=12.5Hz,1H),4.98(d,J=14.6Hz,1H),4.95(d,J=12.5Hz,1H),4.87(d,J=14.6Hz,1H),4.49(s,2H),2.35(s,3H),2.15(s,3H),2.06(s,3H).13C NMR(100MHz,CDCl3)δ216.45,165.7,143.4,141.9,139.8,138.9,138.3,137.4,135.7,132.1,129.4,128.4,128.4,128.1,128.1,101.4,96.2,79.3,66.8,48.7,21.6,20.4,20.3.HRMS(ESI)m/z Calcd for[C27H26INO4S,M+H]+:588.0700;Found:588.0703.
实施例18
化合物5f的合成:
Figure BDA0003483912450000161
氮气氛围下,在烧瓶中加入1a(1mmol,401mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5f(85%yield,92%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.66(d,J=8.0Hz,2H),7.35(s,1H),7.19-7.14(m,12H),6.74(s,1H),6.70(s,1H),5.03(d,J=14.6Hz,1H),4.92(d,J=14.6Hz,1H),4.49(s,2H),2.32(s,3H),2.09(s,3H),1.94(s,3H).13C NMR(100MHz,CDCl3)δ216.7,164.8,143.3,141.9,140.0,139.7,138.9,138.3,137.2,132.0,129.3,128.3 127.8,127.7,127.2,126.9,101.3,96.1,79.1,77.3,48.5,21.5,20.3,20.0.HRMS(ESI)m/z Calcd for[C33H30INO4S,M+Na]+:686.0832;Found:686.0834.
实施例19
化合物5g的合成:
Figure BDA0003483912450000171
氮气氛围下,在烧瓶中加入1i(1mmol,295mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5g(91%yield,84%ee),(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.70(d,J=8.2Hz,2H),7.33–7.21(m,12H),7.12–7.03(m,2H),7.01-6.99(m,1H),6.79(s,1H),5.13(d,J=14.6Hz,1H),4.97(d,J=14.6Hz,1H),4.66(d,J=14.0Hz,1H),4.41(d,J=14.0Hz,1H),2.41(s,3H),2.13(s,3H).13C NMR(100MHz,CDCl3)δ216.4,164.7,143.4,143.3,140.0,137.6,135.0,134.9,129.6,129.3,129.1,128.4,128.0,127.9,127.8,127.8,127.1,126.9,96.1,79.2,77.4,48.1,21.5,19.4.HRMS(ESI)m/z Calcd for[C32H28ClNO4S,M+Na]+:580.1320,582.1304;Found:580.1325,582.1308.
实施例20
化合物5h的合成:
Figure BDA0003483912450000172
氮气氛围下,在烧瓶中加入1d(1mmol,319mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5h(72%yield,82%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.63(dd,J=6.6,2.8Hz,1H),7.55(d,J=8.2Hz,2H),7.29-7.18(m,14H),6.78(s,1H),5.15(d,J=14.6Hz,1H),5.03(d,J=14.6Hz,1H),4.75(d,J=14.4Hz,1H),4.66(d,J=14.4Hz,1H),3.45(s,3H),2.39(s,3H),1.83(s,3H).13C NMR(100MHz,CDCl3)δ216.7,166.6,165.2,142.9,141.3,140.2,138.3,136.5,134.8,132.4,129.5,129.3,128.4,128.3,128.1,127.8,127.8,127.5,127.0,96.9,78.9,51.8,50.3,21.5,18.7.HRMS(ESI)m/z Calcd for[C34H31NO6S,M+Na]+:604.1764;Found:604.1767.
实施例21
化合物5i的合成:
Figure BDA0003483912450000181
氮气氛围下,在烧瓶中加入1j(1mmol,437mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5i(98%yield,89%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ8.40(s,1H),7.94–7.82(m,4H),7.26-7.53(m,2H),7.40(d,J=1.4Hz,1H),7.25–7.19(m,10H),6.85–6.79(m,1H),6.75(s,1H),5.08(d,J=14.7Hz,1H),4.97(d,J=14.7Hz,1H),4.63(s,2H),2.16(s,3H),1.99(s,3H).13C NMR(100MHz,CDCl3)δ216.8,164.9,142.0,140.1,140.1,139.9,139.0,138.3,137.1,135.0,132.3,132.2,129.8,129.5,129.4,128.9,128.6,128.4,127.9,127.9,127.8,127.3,127.0,124.1,101.4,96.1,79.3,77.4,48.8,20.5,20.2.HRMS(ESI)m/z Calcd for[C36H30INO4S,M+Na]+:722.0832;Found:722.0833.
实施例22
化合物5j的合成:
Figure BDA0003483912450000191
氮气氛围下,在烧瓶中加入1k(1mmol,513mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5j(95%yield,85%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.81(d,J=8.5Hz,2H),7.59(d,J=8.5Hz,2H),7.45(s,1H),7.34–7.25(m,10H),6.87(s,1H),6.80(s,1H),5.09(d,J=14.7Hz,1H),4.98(d,J=14.7Hz,1H),4.62(d,J=14.1Hz,1H),4.55(d,J=14.1Hz,1H),2.21(s,3H),2.04(s,3H).13C NMR(100MHz,CDCl3)δ216.7,164.8,141.9,140.9,140.0,139.9,138.9,137.9,136.7,132.2,129.8,128.3,127.9,127.8,127.3,126.9,101.2,100.0,95.9,79.2,77.4,48.9,20.4,20.0.HRMS(ESI)m/z Calcd for[C32H27I2NO4S,M+Na]+:797.9642;Found:797.9647.
实施例23
化合物5k的合成:
Figure BDA0003483912450000192
氮气氛围下,在烧瓶中加入1l(1mmol,443mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5k(97%yield,92%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.70(d,J=8.6Hz,2H),7.39(d,J=8.6Hz,2H),7.35(s,1H),7.24–7.13(m,10H),6.75(s,1H),6.71(s,1H),5.05(d,J=14.6Hz,1H),4.94(d,J=14.6Hz,1H),4.50(s,2H),2.11(s,3H),1.95(s,3H),1.25(s,9H).13C NMR(100MHz,CDCl3)δ216.8,164.8,156.5,142.0,140.1,140.0,139.7,138.9,138.1,137.2,132.1,128.3,128.1,127.8,127.7,127.2,126.9,125.7,101.0,96.3,79.2,77.4,48.5,35.1,31.1,20.3,20.1.HRMS(ESI)m/z Calcd for[C36H36INO4S,M+Na]+:728.1302;Found:728.1306.
实施例24
化合物5l的合成:
Figure BDA0003483912450000201
氮气氛围下,在烧瓶中加入1m(1mmol,455mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5l(90%yield,85%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ8.01(d,J=8.1Hz,2H),7.72(d,J=8.1Hz,2H),7.45(s,1H),7.35-7.26(m,10H),6.89(s,1H),6.80(s,1H),5.09(d,J=14.8Hz,1H),4.98(d,J=14.8Hz,1H),4.66(d,J=14.1Hz,1H),4.58(d,J=14.1Hz,1H),2.22(s,3H),2.05(s,3H).13C NMR(100MHz,CDCl3)δ216.8,164.8,144.5,141.9,140.2,139.9,139.9,139.0,136.5,134.2(q,2JC-F=32.8Hz),132.3,128.9,128.3,127.9,127.8,127.30,126.9,125.8(q,3JC-F=3.3Hz),123.4(q,1JC-F=271.2Hz),101.0,95.8,79.2,77.5,49.1,20.4,20.0.19F NMR(376MHz,CDCl3)δ-62.85.HRMS(ESI)m/z Calcdfor[C33H27F3INO4S,M+Na]+:740.0550;Found:740.0552.
实施例25
化合物5m的合成:
Figure BDA0003483912450000211
氮气氛围下,在烧瓶中加入1n(1mmol,325mg,1equiv.),Cs2CO3(1mmol,326mg,1.0equiv.),β-ICD(0.01mmol,3.2mg,10mol%)和均三甲苯(40mL),将反应体系在-50℃条件下反应10min,随后往烧瓶中加入4f(1.4mmol,451mg,1.4equiv.),反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5m(90%yield,97%ee)。(洗脱剂极性:石油醚/乙酸乙酯/氯苯7:1:1)。1H NMR(400MHz,CDCl3)δ7.42(s,1H),7.34–7.12(m,10H),6.89(s,1H),6.84(s,1H),4.90(d,J=14.7Hz,1H),4.78(d,J=14.7Hz,1H),4.64(d,J=14.2Hz,1H),4.02(d,J=14.2Hz,1H),3.26(s,3H),2.22(s,3H),2.16(s,3H).13C NMR(100MHz,CDCl3)δ216.6,165.4,140.9,140.0,134.0,139.8,138.4,137.2,132.5,128.4,128.4,128.0,127.9,127.6,126.9,103.6,95.5,78.8,77.6,48.9,42.7,20.4,19.9.HRMS(ESI)m/z Calcd for[C27H26INO4S,M+Na]+:610.0519;Found:610.0524.
实施例26
化合物5n的合成:
Figure BDA0003483912450000212
氮气氛围下,在烧瓶中加入5m(1mmol,541mg,1equiv.)和二氯甲烷(15mL),反应体系在-78℃条件下反应10min,随后往烧瓶中通入臭氧,反应12小时,TLC检测反应结束后,加入硅胶,减压条件下去除溶剂后,柱层析纯化得到产物5n(92%yield,97%ee)。(洗脱剂极性:石油醚/乙酸乙酯3:1)。1H NMR(400MHz,CDCl3)δ7.57(s,1H),7.43–7.31(m,10H),7.06(s,1H),6.96(s,1H),5.05(d,J=19.5Hz,1H),4.91(d,J=19.5Hz,1H),3.36(s,3H),2.53(s,3H),2.25(s,3H).13C NMR(100MHz,CDCl3)δ188.0,159.1,141.6,141.0,139.4,139.3,138.8,133.1,129.0,128.8,128.8,127.6,127.4,101.2,79.9,58.9,44.0,20.6.HRMS(ESI)m/z Calcd for[C25H24INO5S,M+Na]+:600.0310;Found:600.0311.
本发明的保护内容不局限于以上实施例。在不背离发明构思的精神和范围下,本领域技术人员能够想到的变化和优点都被包括在本发明中,并且以所附的权利要求书为保护范围。

Claims (5)

1.一种碳氮轴手性磺酰胺类化合物的合成方法,其特征在于以式(1)所示的苯磺酰胺和式(2)所示的化合物为反应原料,在金鸡纳碱衍生物催化剂作用下,在有机溶剂中,在碱的环境中,反应得到如式(3)所示的碳氮轴手性磺酰胺类化合物,
Figure FDA0004112343540000011
其中,R1,R2,R3分别选自氢、氯、溴、碘、甲基或甲酯;
R选自取代苯环、甲基、乙基或萘基,取代苯环的取代基为甲基、硝基、氯、碘、叔丁基或三氟甲基;
R5选自甲基、正丁基、叔丁基或苄基;
R7选自甲基、异丙基、正丁基、叔丁基、苄基或二苯基;
所述金鸡纳碱衍生物催化剂是1mol%β-ICD,碱是碳酸铯;有机溶剂是均三甲苯。
2.如权利要求1所述的合成方法,其特征在于,当反应为式(1)所示的苯磺酰胺与式(2)中的MBH碳酸酯反应时,反应在-30-30℃下进行;当反应为式(1)所示的苯磺酰胺与式(2)中的联烯酯反应时,反应在-50-30℃下进行。
3.如权利要求1所述的合成方法,其特征在于,所述反应原料式(1)所示的苯磺酰胺与式(2)所示化合物的摩尔比例为1.0:1.0-1.0:5.0。
4.如权利要求2所述的合成方法,其特征在于,当反应为式(1)所示的苯磺酰胺与式(2)中的MBH碳酸酯反应时,反应后处理的方法为:反应结束后,将反应液浓缩,进行柱层析,以石油醚与乙酸乙酯体积比为10:1的混合液作为洗脱剂,收集含目标化合物的洗脱液,浓缩蒸馏并干燥,得到目标式(3)化合物。
5.如权利要求2所述的合成方法,其特征在于,当反应为式(1)所示的苯磺酰胺与式(2)中的联烯酯反应时,反应后处理的方法为:反应结束后,将反应液浓缩,进行柱层析,以石油醚、乙酸乙酯与氯苯体积比为7:1:1的混合液作为洗脱剂,收集含目标化合物的洗脱液,浓缩蒸馏并干燥,得到目标式(3)化合物。
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