CN1096511A - 联苯衍生物的制备方法 - Google Patents
联苯衍生物的制备方法 Download PDFInfo
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Abstract
本发明涉及制备式(I)化合物的方法,包括使式
(II)化合物与一种式(III)所示取代的卤代苯化合物反
应,其中各基团和符号的意义见说明书。
Description
本发明涉及一类特定联苯衍生物和它们的制备方法。
在有效成分如有关治疗心脏循环疾病的药剂的制备中,联苯是制备工艺中的重要中间体,例如,EP-A503,162描述了降压制剂的制备,其中含有作为活性物质的、血管紧张肽Ⅱ受体拮抗物型的化合物,该化合物就是一种具有特殊取代的联苯系统。
已有多种制备取代联苯衍生物的制备工艺公开,例如,苯基硼酸衍生物可与芳基卤化物偶合,其中使用过渡金属催化剂如钯。类似的反应已在下述文献中公开:R.B.Miller et al.在Organometallics 1984,3,1261或A.Zu uki et al.在Synthetic.Commun.11(7),513(1981)中。
本发明涉及下述通式(Ⅰ)联苯衍生物的制备方法,
其中
X= 必要时被保护的甲酰基,尤其是-CHO或-CH(OR1)OR2,R1,R2= 相互独立的(C1-C6)烷基,或R1和R2共同形成一个亚烷基-(CH2)n-,其中n=2、3、4或5,及
R= 一个基团,它在合成反应条件下是惰性的。
在本发明的方法中,从已知的、必要时是保护的甲酰基苯卤化物如溴化物或碘化物出发,通过Grignard反应制得式(Ⅱ)的硼酸衍生物(见如H.Feulner et al.,Chemische Berichte,123(1990)1841-1843),
其中,式(Ⅱ)中基团X为一个CHO-基或一个相应的被保护基例如一个醛缩醇基。然后通过与式(Ⅲ)取代的苯基化合物偶合,式(Ⅱ)化合物被转化成式(Ⅰ)联苯化合物,
(Ⅲ)可由已知方法制得,式(Ⅲ)化合物中合适的卤素基团(Hal)优选为溴基和碘基,尤其优选溴基,R如上定义。
可代替式(Ⅱ)硼酸衍生物的有相应的硼酸酯,例如它可由相应的溴基甲基苯硼酸衍生物制备。
式(Ⅱ)和(Ⅲ)两种苯基衍生物结合成相应的联苯化合物的反应可采用一种催化剂,优选一种钯催化剂进行。反应条件可根据不同原料的反应性能而改变,优选采用的温度范围为20-150℃,压力为1-5巴,使用苯或甲苯与烷醇尤其是乙醇的混合物作溶剂。
式(Ⅰ)化合物中的取代基R可为在两个苯环结合所用反应条件下不发生变化的所有基团。尤其适宜作为R的是如下基团:
R=-F、-Cl、-NO2、-(CH2)m-COOR3、
-(CH2)m-CONHR3、-(CH2)m-CN、-SO2NH-COOR3、-SO2NH-CO-NHR3、-SO2NH-SO2-R3、-NHSO2R3、
-三苯甲基、-PO3R3、-NH-SO2-CF3或-SO2NR4,其中R3为氢、C1-6-烷基、C3-6-环烷基或C1-6-烷基-C3-6-环烷基,R4为一个=C-N(CH3)2基团,m为0、1、2、3或4。
为代替两个苯环系统经一种硼酸衍生物的结合,也可用卤代锌苯衍生物、甲基锡苯衍生物或Grignard化合物来制备式(Ⅰ)联苯衍生物。
被保护的甲酰基和Grignard试剂可按常规方法制备。
本发明还及式(Ⅰ)化合物,其中下述化合物是优选的,其中的R为SO2NHCOOR3、SO2NHCONHR3、SO2NHSO2R3或SO2NR4,且其中R为SO2NHCONHR3和SO2NR4是特别优选的;还涉及式(Ⅲ)化合物,其中的下述化合物是优选的,其中R为SO2NH-COOR3、SO2NH-CO-NHR3或SO2NH-SO2R3,且其中R为SO2NHCONHR3是特别优选的。
本发明将通过下列实施例详细解释。
实施例1
4-甲酰基-2′-N,N-二甲基氨基甲酰基-联苯磺酰胺的制备方法
1a)4-溴苯甲醛-二乙基乙缩醛
向溶于65ml(1.1mol)无水乙醇中的2.7g硝酸铵中加入100g(0.54mol)熔化的4-溴苯甲醛和90ml(0.54mol)原蚁酸三乙酯。室温下18个小时后,过滤并用派啶调节至碱性(-pH10)。通过减压蒸馏得到标题化合物。
产率:90%
沸点:(在0.05Torr下)=110-115℃。
1b)4-甲酰基苯基硼酸
氩气氛下,3.65g镁屑用15ml无水THF淹盖,并用0.5ml 1,2-二溴乙烷处理。混合加热引起剧烈反应。在反应平息后,用一个移液管移出溶剂,再用40ml无水THF处理,并加入由32g 1a)产物溶于30ml无水THF形成的溶液的三分之一。反应中使用Red-Al且加热启动。1a)产物的剩余部分在35分钟内滴入。滴加完毕后,再回流沸腾1小时。
将该Grignard产物滴加到一个冷却到-68℃物、在氩气氛下由33.5ml硼酸三丁酯溶于50mlTHF形成的溶液中。30分钟后,除去冷却。混合物在室温下搅拌1小时。浓缩,将蜜色油溶解于100ml乙醚中并加入80ml冰冷却的H2SO4(1M)。分出醚相,再用50ml乙醚萃取二次,浓缩并加入30%(6N)KOH直至出现碱性(pH 14)反应。再加入70ml水,并在高真空度、35-40℃下共沸除去丁醇。再用50ml H2O重复上述过程。剩余物用1M H2SO4调酸(pH 1)并沸腾30分钟。过滤得到浅黄色固体物质标题化合物。
Smp=255-260℃
1c)4-甲酰基-2′-N,N-二甲基氨基甲酰基联苯基磺酰胺
向溶于100ml甲苯中的7g(0.024mol)2-溴-N,N-二甲基氨基甲酰基苯磺酰胺和0.7g三苯基膦(0.1当量)中趁热加入于30ml H2O中的5.7g碳酸钠(2当量)。该混合物用氩气充分吹扫,并在60℃、对流的氩气流中加入0.3g醋酸钯(0.05当量)。10分钟后,在氩气对流气中,向深棕色反应溶液中加入4g溶于70ml醇中的1b化合物(1.1当量)。然后将反应混合物加热到沸点并回流沸腾3.5小时。冷却后,减压蒸除溶剂。用150ml醋酸乙酯溶解剩余物,用饱和碳酸钠溶液洗涤5次。有机相用硫酸镁干燥,并置于一层硅藻土上过滤。减压除去溶剂后,得到8g棕色、部分结晶的标题化合物粗品,它可经在约30ml醋酸乙酯中沸腾而提纯。
产率:83%
Rf=0.4(E/H 2/1);MS(M+1)=317;Smp.:161℃。
类似地,从相应的起始化合物出发,可制得实施例2-6化合物。它们的结构和物理性数据列于表1中。
表 1
实施例7和8叙述了通式(Ⅲ)中间产物的制备。
实施例7
2-溴苯-正丙基磺酰脲的制备
3.5g(15mmol)2-溴苯磺酰胺和4.1gK2CO3置于40ml二甲氧基丙烷中回流沸腾1小时。注射加入3ml异氰酸正丙酯,此后在用12小时冷却至0℃后,用5% NaHSO4溶液调节pH值至5-6,并用醋酸乙酯萃取两次。合并的有机相经MgSO4干燥后浓缩。从醋酸乙酯中重结晶后得到标题化合物。
Rf=0.5(E/H 2/1),MS(M+1)=321
实施例8:
2-碘苯-正丙基磺酰脲的制备方法
8a)2-碘苯磺酰胺
于25ml浓H2SO4(98%)中的3.5g 2-氨基苯磺酰胺在60℃下加热至成为清亮溶液,随后加入2g冰,以使之冷却到0℃。仔细滴加1.45gNaNO2(溶于4ml水中),以不使温度超过5-6℃。然后在5-6℃下搅拌该反应混合物3小时。滴加完3.75g碘化钾(溶于25ml水中)后,得到的红色混合物再搅拌18小时。加入50ml水后,滤出出现的沉淀物,并用水洗涤多次。得到的固体物质溶于醋酸乙酯,用0.2N硫代硫酸钠溶液洗涤一次、用水洗涤二次,并蒸除溶剂。得到4g一种浅黄色物质(产率62%)。
Smp.:197-198℃,IR(液体石蜡):3360,3255,1562cm-1;
MS(M+):283。
8b)2-碘苯-正丙基磺酰脲
向一个搅拌下的2-碘苯磺酰胺溶液(4g溶于40ml丙酮)中一次加入3.92g固体K2CO3,并在氮气氛下回流沸腾。向该加热的反应混合物中滴加异氰酸正丙酯,随后回流沸腾2小时,冷却至室温,并浓缩至干燥。加入200ml水后,用2N HCl将该冷却的反应混合物调至pH=4,并过滤。从丙酮/异丙醚中重结晶出沉淀物。标题化合物产量为4.1g。
Smp.:211-212℃,IR(液体石蜡):3406,3368,1715,1565,1539cm-1;MS(M+):368
实施例1、2、3、5、8a和8b的标题化合物的1H-NMR数据汇总于表2中。
表2
实施例 1:
(DMSO-d6)d=2,68(s,3H);d=2,72(s,3H);d=7,2(s,1H);d=7,25至7,35(m,1H);d=7,45至7,75(m,4H);d=7,95(d,J=8Hz,1H);d=8,05至8,15(m,2H);d=10,1(s,1H).
实施例 2:
(CDCl3)d=1,0(t,J=7Hz,3H);d=4,1(q,J=7Hz,2H);d=7,3至7,6(m,5H);d=7,85至8,0(m,3H);d=10,1(s,1H).
实施例 3:
(CDCl3)d=7,2至7,8(m,6H);7,95至8,05(m,2H);d=10,1(s,1H).
实施例 5.
(DMSO-d6)d=1,0(t,J=7Hz,3H);d=1,3(dq,J=7Hz,2H);d=2,85(dd,J=7Hz,J=9,5Hz,2H);d=6,1(t,J=7Hz,1H);d=7,1至7,4(m,1H);d=7,4至7,8(m,4H);d=7,9至8,1(m,3H);d=9,9(s,1H);d=10,1(s,1H).
实施例 8a.
(CDCl3)5,17(s,1,NH2);7,23至7,52(td芳烃 2H);8,08至8,20(dd,芳烃 2H)
实施例 8b:
(CDCl3)0,82(t,J=7,5CH3,3H);1,45(m,CH2,2H;3,14(m,CH2,2H);6,39(t,CONH,1H);7,29(dt,J=1,5 芳烃,;7,54(td,J=8,15芳烃);8,13(m,芳烃)7,59(s,SO2NH,1H).
缩写:E 醋酸乙酯
H 正庚烷
Red-Al 二氢化双(2-甲氧基乙氧)铝酸钠
THF 四氢呋喃
Trityl 三苯基甲基
Claims (9)
2、按照权利要求1的方法,在其式(Ⅰ)中的取代基具有下述意义:
X: -CHO或-CH(OR1)OR2
R1和R2:相互独立地为C1-6-烷基,或R1和R2共同形成一个亚烷基-(CH2)n-,其中n为2、3、4或5,
R: -F、-Cl、-NO2、-(CH2)m-COOR3、
-(CH2)m-CONHR3、-(CH2)m-CN、-SO2NH-COOR3、-SO2NH-CO-NHR3、-SO2NH-SO2-R3、-NHSO2R3、
-三苯甲基、-PO3R3、-NH-SO2-CF3或-SO2NR4,其中R3为氢、C1-6-烷基、C3-6-环烷基或C1-6-烷基-C3-6-环烷基,R4为一个=C-N(CH3)2基团,m为0、1、2、3或4。
3、按照权利要求1的方法,其中使用过渡金属催化剂钯进行式(Ⅱ)化合物与式(Ⅲ)化合物的反应。
4、一种式(Ⅰ)化合物
其中的取代基具有如下意义:
X: -CHO或-CH(OR1)OR2,其中
R1和R2: 相互独立地为C1-6-烷基,或R1和R2共同为一个亚烷基-(CH2)n-,其中n为2、3、4或5,以及
R: -F、-Cl、-NO2、-(CH2)m-COOR3、
5、按照权利要求4的化合物,在其式(Ⅰ)中,
R为SO2-NR4或SO2NHCONHR3,其中
R1为氢或C1-6-烷基且
R4为一个式=C-N(CH3)2基团。
6、按权利要求1-4之一制备的化合物的应用,用作合成有效成分的中间体。
7、按权利要求4或5之一的化合物的应用,用作合成血管紧张肽Ⅱ受体拮抗物的中间体。
9、按权利要求8的化合物,在其式(Ⅲ)化合物中,R为SO2NH-CO-NHR3,其中R3为C1-6-烷基。
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WO1995031445A1 (fr) | 1994-05-16 | 1995-11-23 | Sumitomo Chemical Company, Limited | Procede pour produire un compose de tetrazole et intermediaire prevu a cet effet |
FR2737721B1 (fr) | 1995-08-08 | 1997-09-05 | Roussel Uclaf | Nouveaux composes biphenyles, leur procede de preparation et les intermediaires de ce procede, leur application a titre de medicament et les compositions pharmaceutiques les contenant |
ES2169356T3 (es) * | 1996-03-13 | 2002-07-01 | Basf Ag | Procedimiento para la preparacion de nitrobifenileno. |
KR19990069877A (ko) * | 1998-02-13 | 1999-09-06 | 성재갑 | 나프토퀴논 구조를 갖는 사이클린-의존 키나아제 저해제 화합물 |
DE102005022362B4 (de) * | 2005-05-10 | 2016-12-15 | Studiengesellschaft Kohle Mbh | Verfahren zur decarboxylierenden C-C Verknüpfung von Carbonsäuren mit Kohlenstoffelektrophilen |
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US3624142A (en) * | 1964-09-10 | 1971-11-30 | Merck & Co Inc | Substituted biphenyl acetic acid derivatives |
DE2362589A1 (de) * | 1973-12-17 | 1975-07-10 | Thomae Gmbh Dr K | Neue araliphatische ketone und carbinole und verfahren zu ihrer herstellung |
ATA937274A (de) * | 1973-12-17 | 1978-02-15 | Thomae Gmbh Dr K | Verfahren zur herstellung neuer araliphatischer ketone |
US5068424A (en) * | 1988-06-17 | 1991-11-26 | Nitrokemia Ipartelepek | Process for preparing arylsulphonyl-isocyanates and addition derivatives thereof |
EP0424317A3 (en) * | 1989-10-19 | 1991-09-25 | Ciba-Geigy Ag | Pyrimidines |
FR2659655B1 (fr) * | 1990-03-19 | 1992-07-24 | Union Pharma Scient Appl | Nouveaux derives d'oxypyrazole antagonistes des recepteurs a l'angiotensine ii ; leurs procedes de preparation, compositions pharmaceutiques les contenant. |
CA2058198A1 (en) * | 1991-01-04 | 1992-07-05 | Adalbert Wagner | Azole derivatives, process for their preparation, and their use |
IE920175A1 (en) * | 1991-02-11 | 1992-08-12 | Zeneca Ltd | Nitrogen heterocycles |
US5162340A (en) * | 1991-05-10 | 1992-11-10 | Merck & Co., Inc. | Substituted 1-(2h)-isoquinolinones bearing acidic functional groups as angiotensin ii antagonists |
TW300219B (zh) * | 1991-09-14 | 1997-03-11 | Hoechst Ag | |
US5130439A (en) * | 1991-11-18 | 1992-07-14 | Lo Young S | Tetrazolylphenylboronic acid intermediates for the synthesis of AII receptor antagonists |
EP0550313A1 (fr) * | 1991-12-30 | 1993-07-07 | Synthelabo | Nouveaux dérivés de 2-(tétrazol-5-yl)-(1,1'-biphényle), leur préparation et leur utilisation comme intermédiaires de synthèse |
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1993
- 1993-06-08 TW TW082104523A patent/TW348175B/zh active
- 1993-12-23 NZ NZ272704A patent/NZ272704A/en unknown
- 1993-12-23 NZ NZ250577A patent/NZ250577A/en unknown
- 1993-12-28 JP JP33392993A patent/JP3586288B2/ja not_active Expired - Fee Related
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1994
- 1994-01-03 HR HR940001A patent/HRP940001A2/xx not_active Application Discontinuation
- 1994-01-04 PL PL94301778A patent/PL301778A1/xx unknown
- 1994-01-04 KR KR1019940000065A patent/KR940018349A/ko not_active Application Discontinuation
- 1994-01-04 AU AU53029/94A patent/AU677247B2/en not_active Ceased
- 1994-01-04 EP EP94100048A patent/EP0606065B1/de not_active Expired - Lifetime
- 1994-01-04 ES ES94100048T patent/ES2136669T3/es not_active Expired - Lifetime
- 1994-01-04 NO NO940023A patent/NO301878B1/no unknown
- 1994-01-04 CN CN94100164A patent/CN1096511A/zh active Pending
- 1994-01-04 IL IL10826294A patent/IL108262A0/xx unknown
- 1994-01-04 CA CA002112795A patent/CA2112795A1/en not_active Abandoned
- 1994-01-04 DK DK94100048T patent/DK0606065T3/da active
- 1994-01-04 SK SK6-94A patent/SK694A3/sk unknown
- 1994-01-04 ZA ZA9418A patent/ZA9418B/xx unknown
- 1994-01-04 CZ CZ9414A patent/CZ1494A3/cs unknown
- 1994-01-04 BR BR9400018A patent/BR9400018A/pt not_active Application Discontinuation
- 1994-01-04 DE DE59408646T patent/DE59408646D1/de not_active Expired - Lifetime
- 1994-01-04 HU HU9400018A patent/HUT67406A/hu unknown
- 1994-01-04 FI FI940032A patent/FI940032A/fi unknown
- 1994-01-04 SI SI9400003A patent/SI9400003A/sl unknown
- 1994-01-04 AT AT94100048T patent/ATE183732T1/de active
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1995
- 1995-05-24 US US08/449,396 patent/US5618975A/en not_active Expired - Lifetime
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1999
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Also Published As
Publication number | Publication date |
---|---|
ES2136669T3 (es) | 1999-12-01 |
GR3031852T3 (en) | 2000-02-29 |
HU9400018D0 (en) | 1994-05-30 |
US5633400A (en) | 1997-05-27 |
NO940023D0 (no) | 1994-01-04 |
DE59408646D1 (de) | 1999-09-30 |
NZ250577A (en) | 1997-02-24 |
NZ272704A (en) | 1997-02-24 |
SI9400003A (en) | 1994-09-30 |
AU5302994A (en) | 1994-07-14 |
ZA9418B (en) | 1994-08-18 |
NO940023L (zh) | 1994-07-07 |
KR940018349A (ko) | 1994-08-16 |
DK0606065T3 (da) | 2000-03-13 |
JP3586288B2 (ja) | 2004-11-10 |
CA2112795A1 (en) | 1994-07-07 |
CZ1494A3 (en) | 1994-08-17 |
SK694A3 (en) | 1994-08-10 |
TW348175B (en) | 1998-12-21 |
HRP940001A2 (en) | 1996-06-30 |
FI940032A0 (fi) | 1994-01-04 |
IL108262A0 (en) | 1994-04-12 |
EP0606065A1 (de) | 1994-07-13 |
EP0606065B1 (de) | 1999-08-25 |
NO301878B1 (no) | 1997-12-22 |
ATE183732T1 (de) | 1999-09-15 |
FI940032A (fi) | 1994-07-07 |
AU677247B2 (en) | 1997-04-17 |
BR9400018A (pt) | 1994-07-26 |
JPH06234690A (ja) | 1994-08-23 |
PL301778A1 (en) | 1994-07-11 |
US5618975A (en) | 1997-04-08 |
HUT67406A (en) | 1995-04-28 |
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