CN104803927A - 含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物及其制备方法和用途 - Google Patents

含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物及其制备方法和用途 Download PDF

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CN104803927A
CN104803927A CN201510146525.0A CN201510146525A CN104803927A CN 104803927 A CN104803927 A CN 104803927A CN 201510146525 A CN201510146525 A CN 201510146525A CN 104803927 A CN104803927 A CN 104803927A
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quinazoline
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曹胜利
许兴智
廖蓟
丁盼盼
马丽
张晶晶
唐雪
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Capital Normal University
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Abstract

本发明公开了通式(I)所示的含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物,其中,Ar1和Ar2的定义详见说明书。此外,还公开了上述化合物的制备方法、其药用组合物。该通式(I)所示的化合物对人结肠癌(HCT-116)和人乳腺癌(MCF-7)细胞的增殖具有抑制作用,可用作抗肿瘤药物。

Description

含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物及其制备方法和用途
技术领域
本发明涉及药物化学领域,更具体地说涉及含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物,及其制备方法和和它们在抗肿瘤药物中的应用。
背景技术
1,3-二芳基-2-丙烯-1-酮(1,3-diaryl-2-propen-1-ones),俗称查耳酮(chalcone),是植物中一类重要的次级代谢产物以及合成黄酮和异黄酮的天然前体。查耳酮由A、B两个芳香环,以及连接两环的α,β-不饱和羰基体系所构成。文献中通常将与羰基相连接的芳环称为A环,而与碳-碳双键相连的称为B环。研究表明,天然或合成的查耳酮类化合物具有广泛的药理学活性,其中包括抗肿瘤活性[Zhu,C.;Zuo,Y.;Wang,R.;Liang,B.;Yue,X.;Wen,G.;Shang,N.;Huang,L.;Chen,Y.;Du,J.;Bu,X.Discovery of potentcytotoxic ortho-aryl chalcones as new scaffold targeting tubulin and mitosiswith affinity-based fluorescence.J.Med.Chem.2014,57,6364-6382][Venkateswararao,E.;Sharma,V.K.;Yun,J.;Kim,Y.;Jung,S.H.Anti-proliferative effect of chalcone derivatives through inactivation of NF-κBin human cancer cells.Bioor.Med.Chem.2014,22,3386–3392][Mai,C.W.;Yaeghoobi,M.;Abd-Rahman,N.;Kang,Y.B.;Pichika,M.R.Chalcones withelectron-withdrawing and electron-donating substituents:Anticancer activityagainst TRAIL resistant cancer cells,structure-activity relationship analysis andregulation of apoptotic proteins.Eur.J.Med.Chem.2014,77,378-387][Singh,P.;Anand,A.;Kumar.V.Recent developments in biological activities ofchalcones:A mini review.Eur.J.Med.Chem.2014,85,758–777][Sahu,U.;Panda,N.C.;Ravikumar,B.V.V.;Kumar,A.Activity of chalcone and itsderivatives-a Review.Pharma Tutor Magazine 2014,2,62–75]。
由于查耳酮类化合物具有易于合成、结构变化多样以及抗肿瘤活性高等优点[Singh,P.;Raj,R.;Kumar,V.;Mahajan,M.P.;Bedi,P.M.S.;Kaur,T.;Saxena,A.K.1,2,3-Triazole tetheredβ-lactam-chalcone bifunctional hybrids:Synthesis and anticancer evaluation.Eur.J.Med.Chem.2012,47,594–600][Boumendjel,A.;Boccard,J.;Carrupt,P.A;Nicolle,E.;Blanc,M.;Geze,A.;Choisnard,L.;Wouessidjewe,D.;Matera,E.L.;Dumontet,C.Antimitotic andantiproliferative activities of chalcones:Forward structure–activity relationship.J.Med.Chem.2008,51,2307–2310],近年来研究者对查耳酮的结构进行修饰和改造,设计、合成了许多查耳酮的衍生物及类似物,并研究了抗肿瘤活性研究。例如,Wang等合成了一系列以吲哚环为B环的查耳酮类似物,其中化合物I对人肝癌细胞HepG2的IC50值为0.22μM,而且诱导细胞周期阻滞在G2/M期。I抑制微管蛋白的聚合,分子对接分析表明,I与微管蛋白的秋水仙结合位点相互作用。体内实验表明,I对移植于BALB/c裸鼠体内HepG2细胞也具有抑制作用[Wang,G.C.;Li,C.Y.;He,L.;Lei,K.;Wang,F.;Pu,Y.Z.;Yang,Z.;Cao,D.;Ma,L.;Chen,J.Y.;Sang,Y.;Liang,X.L.;Xiang,M.L.;Peng,A.H.;Wei,Y.Q.;Chen,L.J.Design,synthesis andbiological evaluation of a series of pyrano chalcone derivatives containingindole moiety as novel anti-tubulin agents.Bioor.Med.Chem.2014,22,2060–2079]。Aryapour等合成了4个以苯并吡喃为A环以及12个以苯并吡喃为B环的查耳酮类似物,其中以6’-氯苯并吡喃为B环,3’,4’,5’-三甲氧基苯基为A环的化合物II,对微管蛋白聚合的抑制作用最好(IC50,19.6μM),对K562细胞的IC50值为38.7μM[Aryapour,H.;Riazi,G.H.;Ahmadian,S.;Foroumadi,A.;Mahdavi,M.;Emami.S.Induction of apoptosisthrough tubulin inhibition in human cancer cells by new chromene-basedchalcones.Pharm.Biol.2012,50,1551–1560]。
尽管如此,现有技术中未涉及包含2-甲基-4-氧代喹唑啉的查尔酮类似物。同时,本领域仍然可渴望全新结构的查尔酮类似物,而且该类化合物具有抗肿瘤活性。
发明内容
本发明人提供了一种含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物,该化合物对人结肠癌HCT-116和人乳腺癌MCF-7细胞具有抗增殖作用。
本发明的目的是提供一种含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物。
本发明的另一个目的是提供上述含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的制备方法。
本发明的另一个目的是提供包含上述含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的药用组合物。
本发明的另一个目的是提供上述含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物在制备抗癌药物中的用途。
具体地说,本发明提供了一种含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物,如通式(I)所示:
其中,式(I)中Ar1和Ar2中的一个为2-甲基-4-氧代喹唑啉-6-基,即:
Ar1和Ar2中的另一个为未取代的芳烃基或取代的芳烃基、或者未取代的杂环基或取代的杂环基;
这里,所述未取代的芳烃基为苯基,所述取代的芳烃基为取代的苯基;所述取代的苯基是指苯环被一个或两个以上的C1-4烷基、任意个卤代C1-4烷基、C1-4烷氧基、C1-4烷氧羰酰基、羟基、卤素(例如氟、氯、溴、或碘)、氨基、单C1-4烷基取代的胺基、双C1-4烷基取代的胺基、硝基或氰基所取代,而且在苯环上取代的位置没有限定,或者或苯环上相邻的两个碳和与其相连的杂原子、亚烷基一起形成5元或6元杂环,其中杂原子为氮或氧且杂原子个数为2个。更优选地,所述取代的苯基选自4-甲基苯基、4-甲氧基苯基、2-甲氧基苯基、3-甲氧苯基、4-硝基苯基、4-氰基苯基、4-溴代苯基、4-氯代苯基、4-氟代苯基、4-二甲胺基苯基、2-氟代苯基、4-乙氧酰苯基、4-羧基苯基、2,4-二氯代苯基、2,4-二氟代苯基、2,3,4,5,6-五氟苯基、4-三氟甲基苯基、2,4-二甲氧基苯基、3,4,5-三甲氧基苯基、3,4-亚乙基二氧苯基、或3,4-亚甲基二氧苯基。
所述未取代的杂环基选自吡咯基、四氢吡咯基、呋喃基、四氢呋喃基、吡喃基、四氢吡喃基、噻吩基、四氢噻吩基、噻唑基、咪唑基、吡啶基、或嘧啶基;所述取代的杂环基是指杂环被一个或两个以上的C1-4烷基、任意个卤代C1-4烷基、C1-4烷氧基、C1-4烷酰基、羟基、卤素(例如氟、氯、溴、或碘)、硝基或氰基所取代,而且在杂环上取代的位置没有限定;优选地,所述未取代的杂环基选自吡咯基、噻吩基、呋喃基、或吡啶基,更优选地为吡咯-2-基、噻吩-2-基、呋喃-2-基、吡啶-2-基、吡啶-3-基、或吡啶-4-基。
作为一种优选的实施方案,本发明提供的式(I),其中Ar1为2-甲基-4-氧代喹唑啉-6-基,即为下列式(II)化合物:
其中,式(II)中Ar2的定义如式(I)化合物。
作为一种优选的实施方案,本发明提供的式(I),其中Ar2为2-甲基-4-氧代喹唑啉-6-基,即为本发明提供的式(I)为下列式(III)化合物:
其中,式(III)中Ar1的定义如式(I)化合物。
在本发明的一种实施方案中,本发明提供的一种上述通式(I)化合物,其选自下列化合物:
(E)-6-(3-苯基丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物1);
(E)-6-(3-(2-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物2);
(E)-6-(3-(3-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物3);
(E)-6-(3-(4-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物4);
6-(3-(4-(二甲基氨基)苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物5);
(E)-2-甲基-6-(3-对甲基苯基丙烯酰基)喹唑啉-4(3H)-酮(化合物6);
(E)-6-(3-(4-溴苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物7);
(E)-6-(3-(4-氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物8);
(E)-6-(3-(4-氟苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物9);
(E)-6-(3-(4-氰基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物10);
(E)-2-甲基-6-(3-(4-硝基苯基)丙烯酰基)喹唑啉-4(3H)-酮(化合物11);
(E)-6-(3-(3,4-亚乙基二氧苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物12);
(E)-6-(3-(2,4-二氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物13);
(E)-2-甲基-6-(3-(3,4,5-三甲氧基苯基)丙烯酰基)喹唑啉-4(3H)-酮(化合物14);
(E)-6-(3-(1H-吡咯-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物15);
(E)-6-(3-(呋喃-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物16);
(E)-2-甲基-6-(3-(噻吩-2-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物17);
(E)-2-甲基-6-(3-(吡啶-2-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物18);
(E)-2-甲基-6-(3-(吡啶-3-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物19);
(E)-2-甲基-6-(3-(吡啶-4-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物20);
(E)-2-甲基-6-(3-氧代-3-苯基丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物21);
(E)-6-(3-(4-羟基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物22);
(E)-6-(3-(4-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物23);
(E)-6-(3-(3-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物24);
(E)-6-(3-(2-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物25);
(E)-6-(3-(2,4-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物26);
(E)-6-(3-(2,5-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物27);
(E)-2-甲基-6-(3-(3,4-亚甲基二氧苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物28);
(E)-2-甲基-6-(3-氧代-3-(2,4,6-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物29);
(E)-2-甲基-6-(3-氧代-3-(3,4,5-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物30);
(E)-6-(3-(4-氨基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物31);
(E)-2-甲基-6-(3-(4-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物32);
(E)-2-甲基-6-(3-(2-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物33);
(E)-6-(3-(2,4-甲基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物34);
(E)-6-(3-(4-溴苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物35);
(E)-6-(3-(4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物36);
(E)-6-(3-(3,4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物37);
(E)-6-(3-(4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物38);
(E)-6-(3-(2,4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物39);
(E)-2-甲基-6-(3-氧代-3-(4-三氟甲基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物40);和
(E)-2-甲基-6-(3-(4-硝基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物41)。
另一方面,本发明提供了如通式(I)所示含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的制备方法,当Ar1为2-甲基-4-氧代喹唑啉-6-基,即为本发明提供的式(I)为式(II)化合物,包括如下步骤:
中间体XI与式(IV)化合物在碱性条件下反应,得到式(II)化合物
式(II)化合物和式(IV)化合物中的取代基Ar2的定义如式(I)化合物;
或者,
当Ar2为2-甲基-4-氧代喹唑啉-6-基,即为本发明提供的式(I)为式(III)化合物,包括如下步骤:
中间体XIII与式(V)化合物在碱性条件下反应,得到式(III)化合物
式(III)化合物和式(V)化合物中的取代基Ar1的定义如式(I)化合物。
在本发明提供的如通式(I)所示含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的制备方法中,其中,所述碱性条件是指在无机碱、有机碱存在下,在水或有机溶剂中,或水和有机溶剂的混合液中反应,例如采用氢氧化钾,在乙醇中反应。
在本发明提供的如通式(I)所示含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的制备方法中,其中,中间体XI可以通过如下路线合成:
以4-乙基苯胺为起始原料,与盐酸羟胺反应得到对乙基-N-肟基乙酰苯胺(VI),中间体VI与浓硫酸反应,生成5-乙基吲哚-2,3-二酮(VII);将VII在NaOH溶液中与30H2O2反应,得到2-氨基-5-乙基苯甲酸(VIII);中间体VIII经酯化、合环得到2-甲基-6-乙基-4-氧代喹唑啉(X)。用CrO3和70ButOOH氧化X,制得2-甲基-6-乙酰基-4-氧代喹唑啉(XI)。
反应条件与试剂:(a)Cl3CCH(OH)2,NH2OH·HCl,Na2SO4,HCl,H2O,70-80℃,10min.(b)H2SO4,75℃,10min.(c)(i)NaOH,H2O2,15-20℃,1h;(ii)AcOH.(d)(i)EtOH,HCl(g),rt,3h;(ii)回流,18h.(e)AcONH4,CH3C(OEt)3,回流,30h.(f)CrO3,70%ButOOH,DCM,rt,4d.
在本发明提供的如通式(I)所示含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的制备方法中,其中,中间体XIII可以通过如下路线合成:
以2-氨基-5-甲基苯甲酸为起始原料,经三步反应得到中间体2-甲基-6-溴甲基-4-氧代喹唑啉(XII);通过索默勒(Somolet)氧化反应,将XII先与六亚甲基四胺反应,生成季铵盐中间体,再在乙醇水溶液中与过量的六亚甲基四胺反应,从而得到2-甲基-4-氧代喹唑啉-6-甲醛(XIII)。
反应条件与试剂:(a)(CH2)6N4,CHCl3,回流,5h.(b)(CH2)6N4,EtOH/H2O(1:1),回流,4h.
第三方面,本发明提供了一种包含上述含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的药用组合物。该药用组合物包括药理学上有效量的式(I)化合物和药学上可接受的辅料。对于本领域技术人员而言,这些辅料都是已知的,例如,生理盐水,明胶,阿拉伯树胶,乳糖,微晶纤维素,淀粉,改性淀粉,纤维素,改性纤维素,羟乙酸钠,磷酸氢钙,硬脂酸镁,滑石,胶体二氧化硅等。此外,这些组合物还可进一步地包含:稳定剂,润湿剂,乳化剂,甜味剂,香味剂,缓冲剂等。
本发明提供的包含上述含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物的药用组合物,根据需要,能够配制成用于口服给药的固体或液体形式,如片剂、丸剂、口服液等;用于非肠道给药的无菌溶液、悬浮液或乳液形式,喷雾剂等。
例如,片剂配方:
制备方法为:将原辅料过100目筛,然后混合均匀;用90%的乙醇制软材,制粒,整粒,加入硬脂酸镁混匀,压片即得。
注射剂配方:
制备方法:
将甘露醇加入1600mL注射用水中,搅拌溶解;将本发明实施例化合物加入上述溶液,搅拌溶解;4%的磷酸氢二钠溶液调pH值为4.15;加注射用水至2000mL,加入活性炭,50℃保温搅拌20min,过滤脱炭;用0.22μm的微孔滤膜过滤,灌封。121℃,15min高温湿热灭菌。
另一方面,本发明提供了式(I)化合物在制备抗肿瘤药物中的应用。本发明的化合物可用于治疗肺癌,结肠癌,肝癌,胃癌,卵巢癌,宫颈癌,口腔癌,乳腺癌,白血病等。
实验证明,本发明的式(I)的化合物具有抗肿瘤活性,对人结肠癌(HCT-116)和人乳腺癌(MCF-7)细胞的增殖具有抑制作用,可作为抗肿瘤药物或作为抗肿瘤活性成分用于抗肿瘤药物组合物。用药的参考剂量为0.1-10mg/kg体重,使用方法为口服或静脉注射。
具体实施方式
以下通过实施例来示例性说明本发明的实施方案,对于本领域的普通技术人员而言,在本发明的教导下,根据现有技术,对本发明实施方案进行的改进,仍属于本发明的保护范围内。
在本发明实施例中,熔点用XT5B型数字显微熔点测定仪测定,温度未校正。核磁共振氢谱(1H NMR)用Varian NMR system 600MHz核磁共振谱仪测定,TMS为内标。高分辨电喷雾质谱(ESI-HRMS)用ThermoScientific的LTQ Orbitrap质谱仪测定。高效液相(HPLC)用Agilent Series1200(柱子:C18,4.5×150mm)测定。
人结肠癌细胞HCT-116和人乳腺癌细胞MCF-7由DNA损伤应答北京市重点实验室提供。所有肿瘤细胞株生长于含有10%胎牛血清、2mM谷氨酸盐和5%盘尼西林的培养基(DMEM)中
实施例中使用的化学原料的来源是:1H-吡咯-2-甲醛、1-(2,4-二甲氧基苯基)乙酮、1-(2,4,6-三甲氧基苯基)乙酮、1-(3,4,5-三甲氧基苯基)乙酮、1-(4-甲基苯基)乙酮、1-(3,4-亚甲基二氧苯基)乙酮购自Sigma公司,1-(2-甲氧基苯基)乙酮、1-(2,5-二甲氧基苯基)乙酮购自TCI公司,(3,4-亚乙基二氧)苯甲醛、1-(4-羟基苯基)乙酮、1-(4-甲氧基苯基)乙酮、1-(3-甲氧基苯基)乙酮、1-(2-甲基苯基)乙酮、1-(4-溴苯基)乙酮、1-(4-三氟甲基苯基)乙酮购自百灵威公司,其它原料均为市售化学试剂。
实施例中使用的人乳腺癌(MCF-7)和结肠癌(HCT-116)和细胞来自首都师范大学DNA损伤应答北京市重点实验室。
缩写词:
ph=苯基;
DCM=二氯甲烷;
m.p.=熔点;
1H NMR=核磁共振氢谱;
ESI-HRMS=电喷雾高分辨质谱;
DMSO=二甲基亚砜;
MTT=3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四氮唑溴盐。
准备例1
5-乙基吲哚-2,3-二酮(中间体VII)的制备
在500mL圆底烧瓶中加入水合三氯乙醛(12.0g,72.7mmol),无水硫酸钠(80.0g,0.56mol)和蒸馏水(240mL),搅拌溶解。另将盐酸羟胺(14.8g,0.21mol)溶于蒸馏水(68mL),同时将对乙苯胺(8.7g,71.8mmol)与浓盐酸(6mL)混合,加入蒸馏水(40mL)。再将后二种溶液依次加入到500mL圆底烧瓶中,加热至沸腾,并保持10min。冷却至室温,过滤,少量冷水洗涤,干燥,得棕色固体12.8g,直接用于下一步反应。
在250mL三口瓶中加入浓硫酸(54mL),加热至50℃,分批加入上述反应产物,控制加入速度,保持温度在60℃左右。加完后,缓慢升温至75℃,并保持75℃左右反应10min。将反应液冷却至室温,搅拌下缓慢倾入碎冰中,有红色固体析出。滤集析出的固体,少量冰水洗涤,室温晾干。粗产物用乙醇重结晶,得红色固体9.6g,收率76%,m.p.122-124℃。1H NMR(600MHz,DMSO-d6)δ:1.15(t,J=7.8Hz,3H,CH2CH3),2.56(q,J=7.8Hz,2H,CH2CH3),6.83(d,J=7.8Hz,1H,吲哚啉-2,3-二酮7-H),7.35(d,J=1.8Hz,1H,吲哚啉-2,3-二酮4-H),7.44(dd,J=7.8,1.8Hz,1H,吲哚啉-2,3-二酮6-H),10.94(s,1H,NH).ESI-HRMS m/z:C10H10NO2([M+H]+)计算值:176.0712;实测值:176.0710.
2-氨基-5-乙基苯甲酸(中间体VIII)的制备
将NaOH(6.5g,162.5mmol)溶于蒸馏水(52mL)中,冷却至30℃以下,缓慢加入5-乙基吲哚-2,3-二酮(2)(9.6g,54.8mmol),搅拌溶解。冰浴冷却至15℃以下,缓慢滴加30%的H2O2(15.6g),控制温度在15-20℃。滴加完毕,保持温度在15-20℃,继续反应1h。缓慢滴加冰醋酸,调节pH至5-6,有黄色固体析出,滤集析出的固体,少量冷水洗涤,干燥。粗品用EtOH/H2O=1:1重结晶,得黄色固体3.4g,收率38%,m.p.107-109℃。1H NMR(600MHz,DMSO-d6)δ:1.11(t,J=7.2Hz,3H,CH2CH3),2.44(q,J=7.2Hz,2H,CH2CH3),6.67(d,J=8.4Hz,1H,苯基3-H),7.63(dd,J=8.4,2.4Hz,1H,苯基4-H),7.51(d,J=2.4Hz,1H,苯基6-H),8.43(br s,2H,NH2).ESI-HRMS m/z:C9H12NO2([M+H]+)计算值:166.0868;实测值:166.0865.
2-氨基-5-乙基苯甲酸乙酯(中间体IX)的制备
将2-氨基-5-乙基苯甲酸(3)(6.6g,40mmol)溶于60mL无水乙醇中,搅拌下通入干燥的HCl气体。随着HCl气体的通入,反应液中逐渐出现大量褐色固体,继续通气约1h,反应液凝结成固体。再继续通气约2h,TLC监测显示大部分原料已经消失,停止通气。加热回流18h。反应液冷却至室温,倾入碎冰中,用饱和Na2CO3溶液调节pH=89。用二氯甲烷萃取(20mL×3),合并有机相,用饱和NaCl溶液洗2次,无水Na2SO4干燥。旋转蒸发除去溶剂,残余物用柱色谱法提纯(洗脱液:二氯甲烷),得黄色油状物4.87g,收率63%。1H NMR(600MHz,DMSO-d6)δ:1.11(t,J=7.8Hz,3H,CH2CH3),1.30(t,J=7.2Hz,3H,OCH2CH3),2.45(q,J=7.8Hz,2H,CH2CH3),4.25(q,J=7.2Hz,2H,OCH2CH3),6.45(s,2H,NH2),6.71(d,J=8.4Hz,1H,苯基3-H),7.12(dd,J=8.4,1.8Hz,1H,苯基4-H),7.52(d,J=1.8Hz,1H,苯基6-H).ESI-HRMS m/z:C11H16NO2([M+H]+)计算值:194.1181;实测值:194.1179.
2-甲基-6-乙基喹唑啉-4(3H)-酮(中间体X)的制备
将2-氨基-5-乙基苯甲酸乙酯(4)(3.47g,18mmol)、乙酸铵(1.39g,18mmol)溶于原乙酸三乙酯(11mL)中,加热回流30h。反应液冷却至室温,滤集析出的固体,晾干。粗品用甲醇重结晶,得灰色固体1.62g,收率48%,m.p.220222℃。1H NMR(600MHz,DMSO-d6)δ:1.23(t,J=7.8Hz,3H,CH2CH3),2.33(s,3H,CH3),2.73(q,J=7.8Hz,2H,CH2CH3),7.50(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.63(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),7.88(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.11(s,1H,NH).ESI-HRMS m/z:C11H13N2O([M+H]+)计算值:189.1028;实测值:189.1026.
2-甲基-6-乙酰基喹唑啉-4(3H)-酮(中间体XI)的制备
将CrO3(0.06g,0.6mmol)加入到二氯甲烷(12mL)中,冷却至0℃,滴加70%过氧化叔丁醇ButOOH(12mL),溶液逐渐变成红色。缓慢升至室温,搅拌片刻,分批加入2-甲基-6-乙基-4-氧代喹唑啉(18)(1.13g,6.0mmol),搅拌反应4d。冷却至0℃,滴加10%Na2S2O5(21mL),控制温度不超过10℃。室温搅拌2h,加入AcOEt(30mL)和饱和食盐水(24mL),静置分层,分离有机相和水相。水相用AcOEt萃取(3×60mL),合并萃取液,依次用饱和NaHCO3溶液(105mL)、饱和食盐水(105mL)、饱和NaHCO3溶液(105mL)洗涤,无水Na2SO4干燥。旋转蒸发除去溶剂,残余物用乙酸乙酯重结晶,得到白色固体0.55g,收率45%,m.p.229-231℃。1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),2.66(s,3H,CH3CO),7.65(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),8.26(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.62(s,1H,喹唑啉-4(3H)-酮5-H),12.51(br s,1H,NH).ESI-HRMS m/z:C11H11N2O2([M+H]+)计算值:203.0821;实测值:203.0818.
化合物1-20的合成通法
在2-甲基-6-乙酰基-4-氧代喹唑啉(6)(0.20g,1mmol)与乙醇(10mL)的混合液中,加入30%KOH溶液(3mL),搅拌片刻,加入不同的芳醛或杂环醛(即式(IV)化合物)(1.1mmol)。室温搅拌,高效液相色谱(检测波长λ=246nm,流动相:MeOH/H2O=7:3,体积比)监测反应。待反应完全后,用浓盐酸调pH至6-7,搅拌20min左右,滤集析出的固体,晾干。粗品用甲醇重结晶,得化合物1-20。
实施例1.
(E)-6-(3-苯基丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物1)
收率:86%,白色固体,m.p.280-282℃.1H NMR(600MHz,DMSO-d6)δ:2.53(s,3H,CH3),7.48(m,3H,苯基3’-H,4’-H,5’-H),7.81(d,J=15.6Hz,1H,COCH=),7.83(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.95(m,2H,苯基2’-H,6’-H),8.06(d,J=15.6Hz,1H,=CHPh),8.55(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.84(s,1H,喹唑啉-4(3H)-酮5-H),12.96(br s,1H,NH).ESI-HRMS m/z:C18H15N2O2([M+H]+)计算值:291.1134;实测值:291.1132.
实施例2.
(E)-6-(3-(2-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物2)
收率:56%,黄色固体,m.p.256-258℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),3.92(s,3H,OCH3),7.05(t,J=7.8Hz,1H,苯基5’-H),7.14(d,J=7.8Hz,1H,苯基3’-H),7.47(td,J=7.8,1.2Hz,1H,苯基4’-H),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.98(d,J=15.6Hz,1H,COCH=),8.04(dd,J=7.8,1.2Hz,1H,苯基6’-H),8.10(d,J=15.6Hz,1H,=CHPh),8.44(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.79(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.47(s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1238.
实施例3.
(E)-6-(3-(3-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物3)
收率:41%,白色固体,m.p.229-231℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),3.85(s,3H,OCH3),7.05(dd,J=7.8,2.4Hz,1H,苯基4’-H),7.39(t,J=7.8Hz,1H,苯基5’-H),7.49(d,J=7.8Hz,1H,苯基6’-H),7.53(s,1H,苯基2’-H),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.77(d,J=15.6Hz,1H,COCH=),8.05(d,J=15.6Hz,1H,=CHPh),8.48(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.82(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.48(s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1239.
实施例4.
(E)-6-(3-(4-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物4)
收率:47%,黄色固体,m.p.258-260℃.1H NMR(600MHz,DMSO-d6)δ:2.43(s,3H,CH3),3.84(s,3H,OCH3),7.03(d,J=9.0Hz,2H,苯基3’-H,5’-H),7.71(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.78(d,J=15.6Hz,1H,COCH=),7.91(d,J=9.0Hz,2H,苯基2’-H,6’-H),7.91(d,J=15.6Hz,1H,=CHPh),8.48(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.81(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.58(br s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1239.
实施例5.
(E)-6-(3-(4-(二甲基氨基)苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物5)
收率:60%,橙色固体,m.p.289-292℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),3.02(s,6H,N(CH3)2),6.76(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.68(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.73-7.76(m,4H,CH=CH,苯基2’-H,6’-H),8.44(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.76(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.43(s,1H,NH).ESI-HRMS m/z:C20H20N3O2([M+H]+)计算值:334.1556;实测值:334.1556.
实施例6.
(E)-2-甲基-6-(3-对甲基苯基丙烯酰基)喹唑啉-4(3H)-酮(化合物6)
收率:62%,白色固体,m.p.276-278℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,苯基CH3),2.45(s,3H,CH3),7.29(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.74(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.78(d,J=15.6Hz,1H,COCH=),7.84(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.00(d,J=15.6Hz,1H,=CHPh),8.50(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.82(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.69(br s,1H,NH).ESI-HRMSm/z:C19H17N2O2([M+H]+)计算值:305.1290;实测值:305.1289.
实施例7.
(E)-6-(3-(4-溴苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物7)
收率:49%,白色固体,m.p.266-268℃.1H NMR(600MHz,DMSO-d6)δ:2.50(s,3H,CH3),7.68(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.78(d,J=15.6Hz,1H,COCH=),7.81(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.93(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.12(d,J=15.6Hz,1H,=CHPh),8.53(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.86(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.92(br s,1H,NH).ESI-HRMS m/z:C18H14BrN2O2([M+H]+)计算值:369.0239,371.0218;实测值:369.0240,371.0219.
实施例8.
(E)-6-(3-(4-氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物8)
收率:50%,白色固体,m.p.242-244℃.1H NMR(600MHz,DMSO-d6)δ:2.45(s,3H,CH3),7.54(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.74(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.79(d,J=15.6Hz,1H,COCH=),8.00(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.10(d,J=15.6Hz,1H,=CHPh),8.50(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.85(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.69(br s,1H,NH).ESI-HRMS m/z:C18H14ClN2O2([M+H]+)计算值:325.0744,327.0714;实测值:325.0744,327.0714.
实施例9.
(E)-6-(3-(4-氟苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物9)
收率:68%,白色固体,m.p.296-298℃.1H NMR(600MHz,DMSO-d6)δ:2.56(s,3H,CH3),7.33(t,J=8.4Hz,2H,苯基3’-H,5’-H),7.82(d,J=15.6Hz,1H,COCH=),7.86(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),8.05(d,J=15.6Hz,1H,=CHPh),8.06(dd,J=8.4,3.0Hz,2H,苯基2’-H,6’-H),8.57(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.87(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H).ESI-HRMS m/z:C18H14FN2O2([M+H]+)计算值:309.1039;实测值:309.1041.
实施例10.
(E)-6-(3-(4-氰基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物10)
收率:69%,白色固体,m.p.272-274℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.82(d,J=15.6Hz,1H,COCH=),7.94(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.15(d,J=8.4Hz,2H,苯基3’-H,5’-H),8.22(d,J=15.6Hz,1H,=CHPh),8.48(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.86(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.49(s,1H,NH).ESI-HRMS m/z:C19H14N3O2([M+H]+)计算值:316.1086;实测值:316.1080.
实施例11.
(E)-2-甲基-6-(3-(4-硝基苯基)丙烯酰基)喹唑啉-4(3H)-酮(化合物11)
收率:59%,黄色固体,m.p.255-257℃.1H NMR(600MHz,DMSO-d6)δ:2.47(s,3H,CH3),7.77(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.88(d,J=15.6Hz,1H,COCH=),8.23(d,J=7.2Hz,2H,苯基2’-H,6’-H),8.28(d,J=15.6Hz,1H,=CHPh),8.30(d,J=7.2Hz,2H,苯基3’-H,5’-H),8.53(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.90(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.78(br s,1H,NH).ESI-HRMS m/z:C18H14N3O4([M+H]+)计算值:336.0984;实测值:336.0985.
实施例12.
(E)-6-(3-(3,4-亚乙基二氧苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物12)
收率:53%,黄色固体,m.p.278-280℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),4.29(m,2H,OCH2),4.32(m,2H,OCH2),6.93(d,J=8.4Hz,1H,苯基5’-H),7.41(dd,J=8.4,1.8Hz,1H,苯基6’-H),7.55(d,J=1.8Hz,1H,苯基2’-H),7.68(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.70(d,J=15.6Hz,1H,COCH=),7.90(d,J=15.6Hz,1H,=CHPh),8.47(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.80(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.45(s,1H,NH).ESI-HRMS m/z:C20H17N2O4([M+H]+)计算值:349.1188;实测值:349.1188.
实施例13.
(E)-6-(3-(2,4-二氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物13)
收率:68%,白色固体,m.p.258-260℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),7.56(d,J=9.0Hz,1H,苯基5’-H),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.77(s,1H,苯基3’-H),8.01(d,J=15.6Hz,1H,COCH=),8.16(d,J=15.6Hz,1H,=CHPh),8.34(d,J=9.0Hz,1H,苯基6’-H),8.47(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.87(s,1H,喹唑啉-4(3H)-酮5-H),12.49(s,1H,NH).ESI-HRMS m/z:C18H13Cl2N2O2([M+H]+)计算值:359.0354,361.0325;实测值:359.0357,361.0327.
实施例14.
(E)-2-甲基-6-(3-(3,4,5-三甲氧基苯基)丙烯酰基)喹唑啉-4(3H)-酮(化合物14)
收率:66%,黄色固体,m.p.246-248℃.1H NMR(600MHz,DMSO-d6)δ:2.52(s,3H,CH3),3.73(s,3H,CH3O),3.88(s,6H,2CH3O),7.28(s,2H,苯基2’-H,6’-H),7.76(d,J=15.6Hz,1H,COCH=),7.84(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),8.00(d,J=15.6Hz,1H,=CHPh),8.57(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.81(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H).ESI-HRMS m/z:C21H21N2O5([M+H]+)计算值:381.1450;实测值:381.1450.
实施例15.
(E)-6-(3-(1H-吡咯-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物15)
收率:61%,黄色固体,m.p.282-284℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),6.24(d,J=4.8Hz,1H,吡咯-2-基4’-H),6.75(m,1H,吡咯-2-基3’-H),7.17(m,1H,吡咯-2-基5’-H),7.65(d,J=15.6Hz,1H,COCH=),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.72(d,J=15.6Hz,1H,=CHPh),8.35(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.80(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),11.88(s,1H,吡咯-2-基NH),12.46(s,1H,NH).ESI-HRMS m/z:C16H14N3O2([M+H]+)计算值:280.1086;实测值:280.1086.
实施例16.
(E)-6-(3-(呋喃-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮(化合物16)
收率:52%,黄色固体,m.p.243245℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),6.72(dd,J=3.6,1.8Hz,1H,呋喃-2-基4’-H),7.17(d,J=3.6Hz,1H,呋喃-2-基3’-H),7.62(s,2H,CH=CH),7.69(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.94(d,J=1.8Hz,1H,呋喃-2-基5’-H),8.38(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.70(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.48(s,1H,NH).ESI-HRMS m/z:C16H13N2O3([M+H]+)计算值:281.0926;实测值:281.0925.
实施例17.
(E)-2-甲基-6-(3-(噻吩-2-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物17)
收率:58%,黄色固体,m.p.265-267℃.1H NMR(600MHz,DMSO-d6)δ:2.40(s,3H,CH3),7.22(dd,J=4.8,3.6Hz,1H,噻吩-2-基4’-H),7.66(d,J=15.6Hz,1H,COCH=),7.69(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.75(d,J=3.6Hz,1H,噻吩-2-基3’-H),7.82(d,J=4.8Hz,1H,噻吩-2-基5’-H),7.97(d,J=15.6Hz,1H,=CHPh),8.42(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.74(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.48(s,1H,NH).ESI-HRMS m/z:C16H13N2O2S([M+H]+)计算值:297.0698;实测值:297.0698.
实施例18.
(E)-2-甲基-6-(3-(吡啶-2-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物18)
收率:62%,白色固体,m.p.230-232℃.1H NMR(600MHz,DMSO-d6)δ:2.41(s,3H,CH3),7.47(m,1H,吡啶-2-基5’-H),7.72(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.78(d,J=15.6Hz,1H,COCH=),7.92(td,J=7.2,1.8Hz,1H,吡啶-2-基4’-H),7.95(d,J=7.2Hz,1H,吡啶-2-基3’-H),8.26(d,J=15.6Hz,1H,=CHPh),8.41(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.72(d,J=4.2Hz,1H,吡啶-2-基6’-H),8.77(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.51(s,1H,NH).ESI-HRMS m/z:C17H14N3O2([M+H]+)计算值:292.1086;实测值:292.1086.
实施例19.
(E)-2-甲基-6-(3-(吡啶-3-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物19)
收率:45%,白色固体,m.p.284-286℃.1H NMR(600MHz,DMSO-d6)δ:2.41(s,3H,CH3),7.51(dd,J=7.8,4.8Hz,1H,吡啶-3-基5’-H),7.71(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.83(d,J=15.6Hz,1H,COCH=),8.21(d,J=15.6Hz,1H,=CHPh),8.44(dt,J=7.8,1.8Hz,1H,吡啶-3-基4’-H),8.49(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.64(dd,J=4.8,1.8Hz,1H,吡啶-3-基6’-H),8.87(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),9.06(d,J=1.8Hz,1H,吡啶-3-基2’-H),12.49(s,1H,NH).ESI-HRMS m/z:C17H14N3O2([M+H]+)计算值:292.1086;实测值:292.1086.
实施例20.
(E)-2-甲基-6-(3-(吡啶-4-基)丙烯酰基)喹唑啉-4(3H)-酮(化合物20)
收率:34%,白色固体,m.p.263-265℃.1H NMR(600MHz,DMSO-d6)δ:2.41(s,3H,CH3),7.71(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.73(d,J=16.2Hz,1H,COCH=),7.89(d,J=6.0Hz,2H,吡啶-4-基3’-H,5’-H),8.28(d,J=16.2Hz,1H,=CHPh),8.48(dd,J=8.4,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.68(d,J=6.0Hz,2H,吡啶-4-基2’-H,6’-H),8.86(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.50(s,1H,NH).ESI-HRMS m/z:C17H14N3O2([M+H]+)计算值:292.1086;实测值:292.1086.
准备例2.
2-甲基-6-溴甲基-4-氧代喹唑啉(中间体XII)的制备
按照本课题组已有的方法[Cao,S.L.;Feng,Y.P.;Zheng,X.L.;Jiang,Y.Y.;Zhang,M.;Wang,Y.;Xu,M.Synthesis of substituted benzylamino andheterocyclylmethylamino carbodithioate derivatives of 4(3H)-quinazolinoneand their cytotoxic activity.Arch Pharm Chem Life Sci 2006,339,250-254.],将2-氨基-5-甲基苯甲酸与乙酸酐加热回流反应1.5h,生成2,6-二甲基苯并噁嗪酮,再以乙醇为溶剂,与氨水室温搅拌反应48h,生成2,6-二甲基-4-氧代喹唑啉,最后在无水三氯甲烷溶液中,以及光照条件下用NBS溴代,得到中间体2-甲基-6-溴甲基-4-氧代喹唑啉(XII)。
2-甲基-4-氧代喹唑啉-6-甲醛(中间体XIII)的制备
参照文献[Shi,B.Y.;Zhang,J.J.;Cao,S.L.;Gao,M.;Ding,P.P.;Li,Z.F.;Liao,J.;Xu X.Synthesis and cytotoxic evaluation of hybrids of indolin-2-oneand quinazoline-4(3H)-one linked via carbon-carbon double bond.J.Chin.Pharm.Sci.2014,23,760-764]的方法,将2-甲基-6-溴甲基-4-氧代喹唑啉(XII)(0.51g,2.0mmol),六亚甲基四胺(0.36g,2.6mmol)溶于三氯甲烷(40mL)中,加热回流4h。反应液冷却至室温,滤集析出的固体,晾干。得白色固体0.79g,直接用于下一步反应。
在50mL圆底烧瓶中加入上述固体、六亚甲基四胺(0.79g,5.6mmol)和50%的乙醇水溶液(20mL),加热回流5h。反应液冷却至室温,旋转蒸发除去溶剂。残余物与水(40mL)混合,滤除少量不溶物,滤液用乙酸乙酯(20mL×5)萃取,合并有机相,饱和食盐水洗涤,无水Na2SO4干燥。旋转蒸发除去溶剂,晾干,得到淡黄色固体0.23g,收率61%。
化合物21-41的合成通法
在50mL圆底烧瓶中加入2-甲基-4-氧代喹唑啉-6-甲醛(XIII)(0.19g,1mmol),乙醇(10mL)和不同浓度的(5-30%)KOH水溶液(2mL),室温搅拌20min,再加入不同的苯乙酮(1.1mmol)。室温搅拌,HPLC(λ=242nm,流动相:MeOH/H2O=7:3)监测反应。待反应完全后,滤集析出的固体,将其溶于少量甲醇,用浓盐酸调pH至67,搅拌20min左右,滤集析出的固体,晾干。粗品用甲醇重结晶,得化合物21-41。
实施例21.
(E)-2-甲基-6-(3-氧代-3-苯基丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物21)
收率:61%,黄色固体,m.p.271-274℃.1H NMR(600MHz,DMSO-d6)δ:2.48(s,3H,CH3)7.59(d,J=7.8Hz,2H,苯基3’-H,5’-H),7.69(t,J=7.8Hz,1H,苯基4’-H),7.72(t,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.88(d,J=15.6Hz,1H,=CHCO),8.09(d,J=15.6Hz,1H,=CH),8.21(d,J=7.8Hz,1H,苯基2’-H,6’-H),8.41(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.55(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.76(s,1H,NH).ESI-HRMS m/z:C18H15N2O2([M+H]+)计算值:291.1134;实测值:291.1125.
实施例22.
(E)-6-(3-(4-羟基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物22)
收率:38%,黄色固体,m.p.>300℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),6.91(d,J=9.0Hz,2H,苯基3’-H,5’-H),7.62(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.79(d,J=15.6Hz,1H,=CHCO),8.01(d,J=15.6Hz,1H,=CH),8.12(d,J=9.0Hz,2H,苯基2’-H,6’-H),8.31(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.45(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),10.42(s,1H,OH),12.34(s,1H,NH).ESI-HRMS m/z:C18H15N2O3([M+H]+)计算值:307.1083;实测值:307.1077.
实施例23.
(E)-6-(3-(4-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物23)
收率:75%,黄色固体,m.p.229-232℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),3.88(s,3H,OCH3),7.09(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.61(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.81(d,J=15.6Hz,1H,=CHCO),8.03(d,J=15.6Hz,1H,=CH),8.21(d,J=8.4Hz,1H,苯基2’-H,6’-H),8.32(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.45(s,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1235.
实施例24.
(E)-6-(3-(3-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物24)
收率:64%,黄色固体,m.p.230-232℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),3.87(s,3H,OCH3),7.25(dd,J=7.8,2.4Hz,1H,苯基4’-H),7.50(t,J=7.8Hz,1H,苯基5’-H),7.62(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.65(s,1H,苯基2’-H),7.82(d,J=7.8Hz,1H,苯基6’-H),7.86(d,J=15.6Hz,1H,=CHCO),8.02(d,J=15.6Hz,1H,=CH),8.35(dd,J=8.4Hz,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.47(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.35(s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1235.
实施例25.
(E)-6-(3-(2-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物25)
收率:29%,黄色固体,m.p.233-235℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),3.89(s,3H,OCH3),7.07(t,J=7.2Hz,1H,苯基5’-H)7.21(d,J=7.2Hz,1H,苯基3’-H)7.49(d,J=15.6Hz,1H,=CHCO),7.53(dd,J=8.4,1.8Hz,1H,苯基6’-H),7.56(td,J=8.4,1.8Hz,1H,苯基4’-H),7.60(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.64(d,J=15.6Hz,1H,=CH),8.17(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.31(d,J=1.8Hz,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C19H17N2O3([M+H]+)计算值:321.1239;实测值:321.1233.
实施例26.
(E)-6-(3-(2,4-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物26)
收率:62%,黄色固体,m.p.240-243℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),3.83(s,3H,OCH3)3.92(s,3H,OCH3),6.66(dd,J=8.4,2.4Hz,1H,苯基5’-H)6.70(d,J=2.4Hz,1H,苯基3’-H),7.60(d,J=8.4Hz,1H,苯基6’-H),7.61(d,J=16.2Hz,1H,=CHCO),7.64(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.67(d,J=16.2Hz,1H,=CH),8.14(dd,J=8.4Hz,2.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.30(d,J=2.4Hz,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C20H19N2O4([M+H]+)计算值:351.1345;实测值:351.1341.
实施例27.
(E)-6-(3-(2,5-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物27)
收率:54%,黄色固体,m.p.221-223℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),3.76(s,3H,OCH3),3.84(s,3H,OCH3),7.07(d,J=2.4Hz,1H,苯基6’-H),7.14(m,2H,苯基3’-H,4’-H),7.49(d,J=16.2Hz,1H,=CHCO),7.60(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.65(d,J=16.2Hz,1H,=CH),8.16(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.31(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.35(s,1H,NH).ESI-HRMS m/z:C20H19N2O4([M+H]+)计算值:351.1345;实测值:351.1342.
实施例28.
(E)-2-甲基-6-(3-(3,4-亚甲基二氧苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物28)
收率:29%,黄色固体,m.p.235-237℃.1H NMR(600MHz,DMSO-d6)δ:2.48(s,3H,CH3),6.18(s,2H,OCH2O),7.10(d,J=8.4Hz,1H,苯基5’-H),7.70(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.71(d,J=1.8Hz,1H,苯基2’-H),7.82(d,J=15.6Hz,1H,=CHCO),7.92(dd,J=8.4,1.8Hz,1H,苯基6’-H),8.07(d,J=15.6Hz,1H,=CH),8.39(dd,J=8.4Hz,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.54(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.86(s,1H,NH).ESI-HRMS m/z:C19H15N2O4([M+H]+)计算值:335.1032;实测值:335.1027.
实施例29.
(E)-2-甲基-6-(3-氧代-3-(2,4,6-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物29)
收率:45%,黄色固体,m.p.232-234℃.1H NMR(600MHz,DMSO-d6)δ:2.51(s,3H,CH3),3.73(s,6H,2OCH3),3.85(s,3H,OCH3),6.32(s,2H,苯基3’-H,5’-H),7.09(d,J=16.2Hz,1H,=CHCO),7.40(d,J=16.2Hz,1H,=CH),7.71(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),8.24(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.30(s,1H,喹唑啉-4(3H)-酮5-H),13.09(s,1H,NH).ESI-HRMS m/z:C21H21N2O5([M+H]+)计算值:381.1450;实测值:381.1444.
实施例30.
(E)-2-甲基-6-(3-氧代-3-(3,4,5-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物30)
收率:21%,黄色固体,m.p.230-232℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),3.78(s,3H,OCH3),3.92(s,6H,2OCH3),7.47(s,2H,苯基2’-H,6’-H),7.63(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.86(d,J=15.6Hz,1H,=CHCO),8.04(d,J=15.6Hz,1H,=CH),8.37(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.46(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.37(s,1H,NH).ESI-HRMS m/z:C21H21N2O5([M+H]+)计算值:381.1450;实测值:381.1446.
实施例31.
(E)-6-(3-(4-氨基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物31)
收率:37%,黄色固体,m.p.>300℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),6.19(br s,3H,NH2),6.64(d,J=7.8Hz,2H,苯基3’-H,5’-H),7.61(d,J=7.8Hz,1H,喹唑啉-4(3H)-酮8-H),7.72(d,J=15.0Hz,1H,=CHCO),7.96(d,J=15.0Hz,1H,=CH),7.97(d,J=7.8Hz,2H,苯基2’-H,6’-H),8.29(d,J=7.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.41(s,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C18H16N3O2([M+H]+)计算值:306.1243;实测值:306.1240.
实施例32.
(E)-2-甲基-6-(3-(4-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物32)
收率:52%,黄色固体,m.p.265-268℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),2.42(s,3H,CH3),7.39(d,J=7.8Hz,2H,苯基3’-H,5’-H),7.62(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.84(d,J=15.6Hz,1H,=CHCO),8.03(d,J=15.6Hz,1H,=CH),8.12(d,J=7.8Hz,2H,苯基2’-H,6’-H),8.33(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.47(s,1H,喹唑啉-4(3H)-酮5-H)12.36(s,1H,NH).ESI-HRMS m/z:C19H17N2O2([M+H]+)计算值:305.1290;实测值:305.1281.
实施例33.
(E)-2-甲基-6-(3-(2-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物33)
收率:53%,黄色固体,m.p.223-225℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),2.41(s,3H,CH3),7.35(d,J=7.2Hz,1H,苯基3’-H),7.36(t,J=7.2Hz,1H,苯基5’-H),7.46(t,J=7.2Hz,1H,苯基4’-H),7.50(d,J=15.6Hz,1H,=CHCO),7.59(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.62(d,J=15.6Hz,1H,=CH),7.70(d,J=7.2Hz,1H,苯基6’-H),8.23(dd,J=8.4,1.2Hz,1H,喹唑啉-4(3H)-酮7-H),8.35(d,J=1.2Hz,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C19H17N2O2([M+H]+)计算值:305.1290;实测值:305.1286.
实施例34.
(E)-6-(3-(2,4-甲基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物34)
收率:48%,黄色固体,m.p.225-229℃.1H NMR(600MHz,DMSO-d6)δ:2.35(s,3H,CH3),2.37(s,3H,CH3),2.41(s,3H,CH3),7.15(s,1H,苯基3’-H),7.16(d,J=7.8Hz,1H,5’-H),7.53(d,J=15.6Hz,1H,=CHCO),7.59(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.62(d,J=15.6Hz,1H,=CH),7.69(d,J=7.8Hz,1H,苯基6’-H),8.23(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.35(s,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMSm/z:C20H19N2O2([M+H]+)计算值:319.1447;实测值:319.1442.
实施例35.
(E)-6-(3-(4-溴苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物35)
收率:47%,黄色固体,m.p.283-286℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),7.62(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.79(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.87(d,J=15.6Hz,1H,=CHCO),8.03(d,J=15.6Hz,1H,=CH),8.14(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.33(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.50(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.36(s,1H,NH).ESI-HRMS m/z:C18H14BrN2O2([M+H]+)计算值:369.0239,371.0218;实测值:369.0236,371.0217.
实施例36.
(E)-6-(3-(4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物36)
收率:49%,黄色固体,m.p.278-280℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),7.62(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.65(d,J=8.4Hz,2H,苯基3’-H,5’-H),7.87(d,J=15.6Hz,1H,=CHCO),8.03(d,J=15.6Hz,1H,=CH),8.23(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.33(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.49(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.36(s,1H,NH).ESI-HRMS m/z:C18H14ClN2O2([M+H]+)计算值:325.0744,327.0714;实测值:325.0740,327.0725.
实施例37.
(E)-6-(3-(3,4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物37)
收率:39%,黄色固体,m.p.>300℃.1H NMR(600MHz,DMSO-d6)δ:2.53(s,3H,CH3),7.77(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.86(d,J=8.4Hz,1H,苯基5’-H),7.91(d,J=15.6Hz,1H,=CHCO),8.12(d,J=15.6Hz,1H,=CH),8.16(dd,J=8.4,1.8Hz,1H,苯基6’-H),8.44(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.46(d,J=1.8Hz,1H,苯基2’-H),8.60(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.34(s,1H,NH).ESI-HRMS m/z:C18H13Cl2N2O2([M+H]+)计算值:359.0354,361.0325;实测值:359.0348,361.0317
实施例38.
(E)-6-(3-(4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物38)
收率:31%,黄色固体,m.p.284-287℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),7.41(t,J=8.4Hz,2H,苯基3’-H,5’-H),7.63(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H)7.86(d,J=15.6Hz,1H,=CHCO),8.06(d,J=15.6Hz,1H,=CH),8.30(dd,J=8.4,5.4Hz,2H,苯基2’-H,6’-H),8.33(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.49(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.36(s,1H,NH).ESI-HRMS m/z:C18H14FN2O2([M+H]+)计算值:309.1039;实测值:309.1032.
实施例39.
(E)-6-(3-(2,4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮(化合物39)
收率:29%,黄色固体,m.p.246-250℃.1H NMR(600MHz,DMSO-d6)δ:2.37(s,3H,CH3),6.94(dd,J=9.0,2.4Hz,1H,苯基5’-H),6.99(dd,J=13.2,2.4Hz,1H,苯基6’-H),7.60(dd,J=15.6,1.8Hz,1H,=CHCO),7.61(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.78(d,J=15.6Hz,1H,=CH),7.89(t,J=8.4Hz,1H,苯基3’-H),8.20(dd,J=8.4,1.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.38(d,J=1.8Hz,1H,喹唑啉-4(3H)-酮5-H),12.35(s,1H,NH).ESI-HRMS m/z:C18H13F2N2O2([M+H]+)计算值:327.0945;实测值:327.0941.
实施例40.
(E)-2-甲基-6-(3-氧代-3-(4-三氟甲基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物40)
收率:21%,黄色固体,m.p.260-264℃.1H NMR(600MHz,DMSO-d6)δ:2.38(s,3H,CH3),7.63(d,J=7.8Hz,1H,喹唑啉-4(3H)-酮8-H),7.92(d,J=15.6Hz,1H,=CHCO),7.95(d,J=7.8Hz,2H,苯基3’-H,5’-H),8.06(d,J=15.6Hz,1H,=CH),8.34(d,J=7.8Hz,1H,喹唑啉-4(3H)-酮7-H),8.38(d,J=7.8Hz,2H,苯基2’-H,6’-H),8.52(s,1H,喹唑啉-4(3H)-酮5-H),12.37(s,1H,NH).ESI-HRMS m/z:C19H14F3N2O2([M+H]+)计算值:359.1007;实测值:359.1007.
实施例41.
(E)-2-甲基-6-(3-(4-硝基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮(化合物41)
收率:47%,黄色固体,m.p.253-256℃.1H NMR(600MHz,DMSO-d6)δ:2.42(s,3H,CH3),7.65(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮8-H),7.91(d,J=15.6Hz,1H,=CHCO),8.05(d,J=15.6Hz,1H,=CH),8.35(d,J=8.4Hz,1H,喹唑啉-4(3H)-酮7-H),8.37(d,J=8.4Hz,2H,苯基2’-H,6’-H),8.40(d,J=8.4Hz,2H,苯基3’-H,5’-H),8.53(s,1H,喹唑啉-4(3H)-酮5-H),12.53(br s,1H,NH).ESI-HRMS m/z:C18H14N3O4([M+H]+)计算值:336.0984;实测值:336.0981.
试验例
抗增殖活性
采用下列的MTT法测定了式I化合物对人结肠癌HCT-116和人乳腺癌MCF-7细胞增殖的半抑制浓度(IC50),5-氟尿嘧啶(5-FU)做为阳性对照。
所有肿瘤细胞株生长于含有10%胎牛血清、2mM谷氨酸盐和5%盘尼西林的培养基(DMEM)中。
选用指数生长期的贴壁肿瘤细胞,经胰蛋白酶消化后,用含10%小牛血清的RPMI1640培养液配成5×104~10×104个细胞/mL的细胞悬液,接种在96孔培养板所设的实验孔中,每孔加入90μL,同时设置本底孔(即加入90μL培养液)。于37℃,5%CO2环境下培养24h。配制样品溶液时,将各化合物用培养液配制为不同浓度的溶液,对照组为含2%DMSO的培养液。于样品孔中加入10μL样品溶液,对照孔中加入10μL含2%DMSO的培养液,本底孔中加入10μL培养液,每孔设置3个复孔,于37℃,5%CO2下培养72h。向各孔中加入20μL MTT溶液(Promega公司的CellTiter AQueous单溶液细胞增殖检测试剂盒),37℃继续培养2h。用酶联免疫检测仪测定各孔在波长492nm处的光密度(OD)值。按如下公式计算细胞增殖抑制率(Inhibition Rate,IR%),然后用SPSS数理统计软件求出半数抑制浓度(IC50值),结果见表1和表2。以同样方法获得5-氟尿嘧啶的IC50值,数值列在表1和2中。
IR%=[1-(OD样品组-OD本底组)/(OD对照组-OD本底组)]×100%
表1.式(II)化合物的示例化合物抗增殖活性
注:Ph为苯基;
Thiophene为噻吩;
Pyridine为吡啶
yl为“基”
di为“二”;
tri为“三”。
表2.式(III)化合物的示例化合物抗增殖活性

Claims (10)

1.含2-甲基-4-氧代喹唑啉-6-基的查耳酮类似物,如通式(I)所示:
其中,式(I)中Ar1和Ar2中的一个为2-甲基-4-氧代喹唑啉-6-基,即:
Ar1和Ar2中的另一个为未取代的芳烃基或取代的芳烃基、或者未取代的杂环基或取代的杂环基。
2.根据权利要求1所述的查耳酮类似物,其中,式(I)为下列式(II)化合物:
其中,式(II)中Ar2的定义如权利要求1式(I)化合物。
3.根据权利要求1所述的查耳酮类似物,其中,式(I)为下列式(III)化合物:
其中,式(III)中Ar1的定义如权利要求1式(I)化合物。
4.根据权利要求1至3中任一权利要求所述的查耳酮类似物,其中,所述未取代的芳烃基为苯基,所述取代的芳烃基为取代的苯基;所述取代的苯基是指苯环被一个或两个以上的C1-4烷基、卤代C1-4烷基、C1-4烷氧基、C1-4烷氧羰酰基、羟基、卤素、氨基、单C1-4烷基取代的胺基、双C1-4烷基取代的胺基、硝基或氰基所取代,或苯环上相邻的两个碳和与其相连的杂原子、亚烷基一起形成5元或6元杂环,其中杂原子为氮或氧且杂原子个数为2。
5.根据权利要求4所述的查耳酮类似物,其中,所述取代的苯基选自4-甲基苯基、4-甲氧基苯基、2-甲氧基苯基、3-甲氧苯基、4-硝基苯基、4-氰基苯基、4-溴代苯基、4-氯代苯基、4-氟代苯基、4-二甲胺基苯基、2-氟代苯基、4-乙氧酰苯基、4-羧基-苯基、2,4-二氯代苯基、2,4-二氟代苯基、2,3,4,5,6-五氟苯基、4-三氟甲基苯基、2,4-二甲氧基苯基、3,4,5-三甲氧基苯基、3,4-亚乙基二氧苯基、或3,4-亚甲基二氧苯基。
6.根据权利要求1至3中任一权利要求所述的查耳酮类似物,其中,所述未取代的杂环基选自吡咯基、四氢吡咯基、呋喃基、四氢呋喃基、吡喃基、四氢吡喃基、噻吩基、四氢噻吩基、噻唑基、咪唑基、吡啶基、或嘧啶基;所述取代的杂环基是指杂环被一个或两个以上的C1-4烷基、卤代C1-4烷基、C1-4烷氧基、C1-4烷酰基、羟基、卤素、硝基或氰基所取代。
7.根据权利要求6所述的查耳酮类似物,其中,所述未取代的杂环基选自吡咯基、噻吩基、呋喃基、或吡啶基,优选地为吡咯-2-基、噻吩-2-基、呋喃-2-基、吡啶-2-基、吡啶-3-基、或吡啶-4-基。
8.如权利要求1所述的查耳酮类似物,选自化合物中的一种:
(E)-6-(3-苯基丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(3-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-甲氧基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-(二甲基氨基)苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-对甲基苯基丙烯酰基)喹唑啉-4(3H)-酮;
(E)-6-(3-(4-溴苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氟苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氰基苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(4-硝基苯基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-6-(3-(3,4-亚乙基二氧苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2,4-二氯苯基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(3,4,5-三甲氧基苯基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-6-(3-(1H-吡咯-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(呋喃-2-基)丙烯酰基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(噻吩-2-基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(吡啶-2-基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(吡啶-3-基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(吡啶-4-基)丙烯酰基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-氧代-3-苯基丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-6-(3-(4-羟基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(3-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2-甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2,4-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2,5-二甲氧基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(3,4-亚甲基二氧苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-氧代-3-(2,4,6-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-氧代-3-(3,4,5-三甲氧基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氨基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(4-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-(2-甲基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮;
(E)-6-(3-(2,4-甲基苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-溴苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(3,4-氯苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-6-(3-(2,4-氟苯基)-3-氧代丙-1-烯-1-基)-2-甲基喹唑啉-4(3H)-酮;
(E)-2-甲基-6-(3-氧代-3-(4-三氟甲基苯基)丙-1-烯-1-基)喹唑啉-4(3H)-酮;和
(E)-2-甲基-6-(3-(4-硝基苯基)-3-氧代丙-1-烯-1-基)喹唑啉-4(3H)-酮。
9.一种包含权利要求1至8中任一权利要求所述查耳酮类似物的药用组合物。
10.如权利要求1至8中任一权利要求所述查耳酮类似物或如权利要求9所述的药用组合物在制备抗癌药物中的应用。
CN201510146525.0A 2015-03-31 2015-03-31 含2‑甲基‑4‑氧代喹唑啉‑6‑基的查耳酮类似物及其制备方法和用途 Expired - Fee Related CN104803927B (zh)

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