CN102399226A - 具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶及其制备方法 - Google Patents
具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶及其制备方法 Download PDFInfo
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Abstract
Description
技术领域
本发明涉及具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶及其制备方法,以及它作为除草剂的生物活性。
背景技术
20世纪80年代以来,农药工业进入了快速发展时期,许多新型、高效、对环境友好的农药品种应用而生。其中,杂环化合物占据了十分重要的地位。而嘧啶类衍生物作为杂环化合物的一个活跃分支,日益引起人们的广泛关注。1952年瑞士的汽巴-嘉基公司开发的含嘧啶有机磷杀虫剂—二嗪磷(diazinon)应是第一个含嘧啶农药,自此开始了嘧啶杂环在农药领域的应用。从目前上市的嘧啶类农药来看,其应用范围及其广泛,已涉足除草、杀虫/杀螨、杀菌和植物生长调节多个领域。由于嘧啶类化合物高效、低毒和结构多样,及本身具有的广泛的生物活性,再将一个嘧啶环引入到原有嘧啶环上不仅丰富了农药结构骨架而且其新合成的嘧啶并嘧啶类化合物势必会大幅度提高其生物活性和药理活性。因此,嘧啶并嘧啶类化合物的设计和研究具有较大的理论和应用价值。
嘧啶并[4,5-d]嘧啶及其氧代衍生物具有潜在的生物学和药理学活性,如具有抗肿瘤(antitumor)、抗病毒(antiviral)、抗氧化性(antioxidant)、对C-Src酪氨酸激酶(tyrosine kinase)表皮生长因子的交往抗性,因此引起了研究者的极大兴趣,其中在治疗心血管和抗肿瘤方面取得了较好的临床效果,该类化合物是人们合成和研究的最多的一类嘧啶并嘧啶类化合物,综合近几十年来各类文献, 其合成方法主要分为以下几类:(1)从酰胺基嘧啶关环;(2)从氰基嘧啶关环;(3)从氨基嘧啶关环;(4)从嘧啶酮关环;(5)从嘧啶甲醛关环;(6)从嘧啶羧酸酯关环。
2007年, Masahiro Mizuta等报道了在醋酸钯的催化作用下以氨基嘧啶酮和吡咯硼酸盐为原料,通过Suzuki-Miyaura偶联反应,得到嘧啶并[4,5-d]嘧啶的关环产物,此方法以乙腈为溶剂,反应温度较低,反应条件温和,产物收率为46%~ 84%,此方法是首次被报道的用氨基嘧啶和吡咯硼酸盐合成嘧啶并[4,5-d]嘧啶的合成方法。
为了对此类新型化合物的农药活性进行探索性的研究,我们对此类化合物的合成方法进行了研究,发明了一种未见文献报道的新颖的嘧啶并[4,5-d]嘧啶类化合物,并对其生物活性进行了测试且从中找到了具有优良生物活性的化合物。
发明内容
本发明的目的在于提供一类具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶及其制备方法,探索具有新结构并具有除草活性的多取代嘧啶并[4,5-d]嘧啶衍生物,
本发明的目的是这样来实现的,其化合物的结构通式如I:
式中,R1表示C1,C2,C3,C4,C5,C12,C14,C16,C18等的正烷硫基;R2表示苯基、对甲基苯基、对硝基苯基、3,5-二硝基苯基、邻氯苯基、1-萘基亚甲基、2-呋喃基、4-吡啶基。
本发明所述的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶的制备方法是:用通式Ⅱ所表示的化合物与原甲酸三乙酯反应生成中间体Ⅲ,Ⅲ再与R2CONHNH2反应,在加热条件下关环,即可获得较好的产率。
以通式I表示的化合物的合成路线如下:
Ⅱ Ⅲ I
式Ⅱ和R2CONHNH2中R1、R2与通式I中的定义相同。
上述反应中的Ⅱ与原甲酸三乙酯摩尔比为1:3-4,采用原甲酸三乙酯即为反应物又为溶剂在120℃之间反应9小时,得到中间体Ⅲ,中间体Ⅲ再与R2CONHNH2以摩尔比1:1,有机溶剂为乙二醇甲醚,在125℃反应5小时,即可获得较好的收率。
本发明的优点是:3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶对单子叶和双子叶杂草具有显著的抑制作用,可用作为除草剂的有效成分。
具体实施方式
下面通过实例来具体地说明本发明的式I化合物的制备方法,这些实施例仅仅对本发明进行说明,而不是对本发明进行限制。
实施例1 化合物1的制备
3-苯甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶啶并[4,5-d]嘧啶
在50mL的圆底烧瓶中,加入0.05mol 4-氨基-5-氰基-2,6二甲硫基嘧啶、0.015mol原甲酸三乙酯和催化量的三氟乙酸,搅拌加热回流9小时。反应完后减压除去没有反应的原甲酸三乙酯,残余物用石油醚洗涤数次既得淡黄色固体4-乙氧基亚甲基氨基-5-氰基-2,6-二甲硫基嘧啶,熔点128-129℃,产率70%
将0.001mol 4-乙氧基亚甲基氨基-5-氰基-2,6-二甲硫基嘧啶,0.001mol苯氧乙酰肼和10mL乙二醇甲醚加入到50mL的圆底烧瓶中,搅拌加热回流5小时。冷却,抽滤。滤饼用少量的乙醚洗涤数次,烘干既得黄色固体,收率为75%,m.p.290-291℃。
C15H14N6OS2
IR (KBr, υ/ cm-1): 3447, 3327 (N-H), 1661 (C=O), 1578, 1474, 1344, 1086, 922;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.71 (s, 6H, SCH 3), 7.51-7.60 (m, 3H, Ar-H), 7.81 (d, J = 8.0 HZ, 2H, Ar-H), 7.92 (s, 1H, CH=N), 10.72 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 358 (M+); Anal. Calcd.(%) for C15H14N6OS2: C 50.26, H, 3.94, N 23.45; Found C 50.42, H 3.89, N 23.61.
化合物6、11、16、21、26、31、36按化合物1类似的方法制得,其结构鉴定数据如下:
化合物6
所得纯品为黄色固体,收率为74%,m.p.293-295℃
C16H16N6OS2
IR (KBr, υ/cm-1): 3436 (N-H), 1630 (C=O), 1568, 1424, 1077, 951, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.42 (s, 3H, SCH 3), 2.58 (s, 6H, SCH 3), 7.32 (d, J = 8.0 HZ, 2H, Ar-H), 7.71 (d, J = 8.0 HZ, 2H, Ar-H), 7.91 (s, 1H, CH=N), 10.69 (s, 1H, NH-CO ), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 372 (M+); Anal. Calcd.(%) for C16H16N6OS2: C 51.59, H 4.33, N 22.56; Found C 51.73, H 4.55, N 22.39.
化合物11
3-对硝基苯甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为71%,m.p.278-280℃
C15H13N7O3S2
IR (KBr, υ/ cm-1): 3442 (N-H), 1643 (C=O), 1564, 1409, 1068, 953, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.42 (s, 3H, SCH 3), 2.58 (s, 3H, SCH 3), 7.94 (s, 1H, CH=N), 8.06 (d, J = 8.0 HZ, 2H, Ar-H), 8.35 (d, J = 12.0 HZ, 2H, Ar-H), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 403 (M+); Anal. Calcd.(%) for C15H13N7O3S2: C 44.66, H 3.25, N 24.30; Found C 44.72, H 3.29, N 24.51.
化合物16
3-(3,5-二硝基)苯甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为64%,m.p.>300℃
C14H12N8O5S2
IR (KBr, υ/ cm-1): 3423, 3312(N-H), 1669(C=O), 1575, 1423, 1389, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.48 (s, 6H, SCH 3), 7.39 (s, 1H, Ar-H), 7.54 (s, 1H, Ar-H), 7.64 (s, 1H, Ar-H), 7.93 (s, 1H, CH=N), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH) ; MS (EI, m/z, % ): 448 (M+); Anal. Calcd.(%) for C15H12N8O5S2: C 40.18, H 2.70, N 24.99; Found C 40.30, H 2.49, N 25.22.
化合物21
3-邻氯苯甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为71%,m.p.287-288℃
C14H13ClN6OS2
IR (KBr, υ/ cm-1): 3423 (N-H), 1640(C=O), 1572, 1473, 1346, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.43 (s, 3H, SCH 3), 2.50 (s, 3H, SCH 3), 7.40-7.55 (m, 4H, Ar-H), 7.84 (s, 1H, CH=N), 10.57 (s, 1H, NH-CO), 12.01 (s, 1H, C =NH); MS (EI, m/z, % ): 393 (M+); Anal. Calcd.(%) for C15H13ClN6OS2: C 45.86, H 3.34, N 21.39; Found C 45.96, H 3.59, N 21.47.
化合物26
3-(1-萘)乙酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为68%,m.p.278-279℃
C20H18N6OS2
IR (KBr, υ/ cm-1): 3423(N-H), 1635 (C=O), 1595, 1454, 1346, 781;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.41(s, 6H, SCH 3), 4.54 (s, 2H, Ar-CH 2), 7.45-7.91 (m, 7H, Ar-H); 7.99 (s, 1H, CH=N), 9.87 (s, 1H, NH-CO), 12.00 (s, 1H, C=NH) ; MS (EI, m/z, % ): 422 (M+); Anal. Calcd.(%) for C20H18N6OS2: C 56.85, H 4.29, N 19.89; Found C 56.92, H 4.39, N 19.98.
化合物31
3-(2-呋喃)甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为65%,m.p.235-238℃
C13H12N6O2S2
IR (KBr, υ/ cm-1): 3423, 3312(N-H),1630 (C=O), 1571, 1473, 1388, 790;
1H NMR(δ/ppm, DMSO, TMS, 400MHz): 2.48 (s, 6H, SCH 3), 6.70 (s, 1H, funan-H), 7.19 (s, 1H, funan-H), 7.91 (s, 1H, CH=N), 7.98 (s, 1H, funan-H), 10.62 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 348 (M+); Anal. Calcd.(%) for C13H12N6O2S2: C 44.82, H 3.47, N 24.12; Found C 44.94, H 3.59, N 24.33.
化合物36
3-(4-吡啶)甲酰胺基-3,4-二氢-4-亚胺-5,7-二甲硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为69%,m.p.294-296℃
C14H13N7OS2
IR (KBr, υ/ cm-1): 3423, 3301 (N-H), 1630 (C=O), 1572, 1472, 1391, 777;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 2.45 (s, 6H, SCH 3), 7.76 (d, J = 24.0 HZ, 2H, pyridine-H), 7.91 (s, 1H, CH=N), 8.74 (d, J = 8.0 HZ, 2H, pyridine-H), 10.77 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ):359 (M+); Anal. Calcd.(%) for C14H13N7OS2: C 46.78, H 3.65, N 27.28; Found C 46.90, H 3.79, N 27.40.
实施例2
化合物2的制备
3-苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶啶并[4,5-d]嘧啶
在50mL的圆底烧瓶中,加入0.05mol 2-乙硫基-4-氨基-5-氰基-6-二甲硫基嘧啶、0.015mol原甲酸三乙酯和催化量的三氟乙酸,搅拌加热回流9小时。反应完后减压除去没有反应的原甲酸三乙酯,残余物用石油醚洗涤数次既得淡黄色固体2-乙硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,熔点72-73℃,产率76%
将0.001mol 2-乙硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,0.001mol苯甲酰肼和10mL乙二醇甲醚加入到50mL的圆底烧瓶中,搅拌加热回流5小时。冷却,抽滤。滤饼用少量的乙醚洗涤数次,烘干既得黄色固体,收率为73%,
m.p.286-287℃。
C16H16N6OS2
IR (KBr, υ/ cm-1): 3468 (N-H), 1661 (C=O), 1583, 1472, 1087, 921, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.34-1.37 (m, 3H, SCH2 CH 3), 2.54(s, 3H, SCH 3), 3.14-3.18 (m, 2H, SCH 2CH3), 7.54-7.58 (m, 3H, Ar-H), 7.81 (d, J = 8.0 HZ, 2H, Ar –H ), 7.92 (s, 1H, CH=N), 10.72 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 372 (M+); Anal. Calcd.(%) for C16H16N6OS2: C 51.59, H 4.33, N 22.56; Found C 51.64, H 4.49, N 22.65.
化合物7、12、17、22、27、32、37按化合物2类似的方法制得,其结构鉴定数据如下:
化合物7
3-对甲基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为75%,m.p.297-298℃
C17H18N6OS2
IR (KBr, υ/ cm-1): 3436 (N-H), 1630 (C=O), 1568, 1424, 1160, 860, 778;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.30-1.37 (m, 3H, SCH2 CH 3), 2.42 (s, 3H, ArCH 3), 2.50 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH3), 7.32 (d, J = 8.0 HZ, 2H, Ar-H), 7.71 (d, J = 8.0 HZ, 2H, Ar-H), 7.91 (s, 1H, CH=N), 10.69 (s, 1H, NH-CO), 12.10 (s, 1H, C= NH); MS (EI, m/z, % ): 386 (M+); Anal. Calcd.(%) for C17H18N6OS2: C 52.83, H 4.69, N 21.74; Found C 52.98, H 4.88, N 21.84.
化合物12
3-对硝基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为72%,m.p.283-285℃
C16H15N7O3S2
IR (KBr, υ/ cm-1): 3443 (N-H), 1641 (C=O), 1567, 1424, 1068, 953, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.34-1.37 (m, 3H, SCH2 CH 3), 2.49 (s, 2H, ArCH 3), 3.16-3.18 (m, 2H, SCH 2CH3), 7.94 (s, 1H, CH=N), 8.06 (d, J = 8.0 HZ, 2H, Ar-H), 8.34 (d, J = 8.0 HZ, 2H, Ar-H), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 417 (M+); Anal. Calcd.(%) for C16H15N7O3S2: C 46.03, H 3.62, N 23.49; Found C 46.20, H 3.78, N 23.55.
化合物17
3-(3,5-二硝基)苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为68%,m.p.>300℃
C16H14N8O5S2
IR (KBr, υ/ cm-1): 3342, 3312 (N-H), 1669(C=O), 1575, 1423, 1389, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.34-1.37 (m, 3H, SCH2 CH 3), 2.49 (s, 3H, SCH 3), 3.14-3.18 (m, 2H, SCH 2CH3), 7.39 (s, 1H, Ar-H), 7.54 (s, 1H, Ar-H), 7.64 (s, 1H, Ar-H), 7.93 (s, 1H, CH=N), 10.70 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 462 (M+); Anal. Calcd.(%) for C16H14N8O5S2: C 41.55, H 3.05, N 24.23; Found C 41.71, H 3.29, N 24.37.
化合物22
3-邻氯苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为72%,m.p.276-278℃
C16H15ClN6OS2
IR (KBr, υ/cm-1): 3442 (N-H), 1630 (C=O), 1573, 1473, 1071, 953, 734;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.31-1.36 (m, 3H, SCH2 CH 3), 2.50 (s, 3H, SCH 3), 3.14-3.16 (m, 2H, SCH 2CH3), 7.40-7.55 (m, 4H, Ar-H), 7.84 (s, 1H, CH=N), 10.57 (s, 1H, NH-CO), 12.01 (s, 1H, C=NH); MS (EI, m/z, % ): 407 (M+); Anal. Calcd.(%) for C16H15ClN6OS2: C 47.23, H 3.72, N 20.65; Found C 47.33, H 3.89, N 20.81.
化合物27
3-(1-萘)乙酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为72%,m.p.260-262℃
C21H20N6OS2
IR (KBr, υ/ cm-1): 3414 (N-H), 1635 (C=O), 1595, 1454, 1346, 781;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.25-1.36 (m, 3H, SCH2 CH 3), 2.48 (s, 3H,SCH 3 ), 3.14-3.18 (m, 2H, SCH 2CH3), 4.53 (s, 2H, Ar-CH 2), 7.44-7.90 (m, 7H, Ar-H), 7.99 (s, 1H, CH=N), 9.88 (s, 1H, NH-CO), 12.01 (s, 1H, C=NH); MS (EI, m/z, % ): 436 (M+); Anal. Calcd.(%) for C21H20N6OS2: C 57.78, H 4.62, N 19.25; Found C 57.91, H 4.88, N 19.38.
化合物32
3-(2-呋喃)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为66%,m.p. >300℃
C14H14N6O2S2
IR (KBr, υ/ cm-1): 3430, 3306 (N-H), 1633 (C=O), 1571, 1473, 1340, 777;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.33-1.37 (m, 3H, SCH2 CH 3), 2.48 (s, 3H,SCH 3), 3.14-3.18 (m, 2H, SCH 2CH3), 6.70 (s, 1H, funan-H), 7.19 (s, 1H, funan-H), 7.91 (s, 1H, CH=N), 7.98 (s, 1H, funan-H), 10.65 (s, 1H, NH-CO),12.13 (s, 1H, C=NH); MS (EI, m/z, % ): 362 (M+); Anal. Calcd.(%) for C14H14N6O2S2: C 46.39, H 3.89, N 23.19; Found C 46.64, H 3.97, N 23.38.
化合物37
3-(4-吡啶)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-乙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为74%,m.p.290-292℃
C15H15N7OS2
IR (KBr, υ/ cm-1): 3435, 3325 (N-H), 1624 (C=O), 1624, 1567, 1384, 778;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 1.31-1.37 (m, 3H, SCH2 CH 3), 2.45 (s, 3H, SCH 3), 3.13-3.17 (m, 2H, SCH 2CH3), 7.76 (d, J = 24.0HZ, 2H, pyridine-H), 7.91 (s, 1H, CH=N), 8.75 (d, J = 8.0HZ, 2H, pyridine-H), 10.76 (s, 1H, NH-CO), 12.16 (s, 1H, C=NH); MS (EI, m/z, % ): 373 (M+); Anal. Calcd.(%) for C15H15N7OS2: C 48.24, H 4.05, N 26.25; Found C 48.51, H 4.09, N 26.39.
实施例3
化合物3的制备
3-苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-丙硫基嘧啶啶并[4,5-d]嘧啶
在50mL的圆底烧瓶中,加入0.05mol 2-正丙硫基-4-氨基-5-氰基-6-二甲硫基嘧啶、0.015mol原甲酸三乙酯和催化量的三氟乙酸,搅拌加热回流9小时。反应完后减压除去没有反应的原甲酸三乙酯,残余物用石油醚洗涤数次既得淡黄色固体2-正丙硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,熔点69-71℃,产率83%
将0.001mol 2-正丙硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,0.001mol苯甲酰肼和10mL乙二醇甲醚加入到50mL的圆底烧瓶中,搅拌加热回流5小时。冷却,抽滤。滤饼用少量的乙醚洗涤数次,烘干既得黄色固体,收率为79%,m.p. >300℃。
C17H18N6OS2
IR (KBr, υ/cm-1): 3437, 3329 (N-H), 1660 (C=O), 1577, 1473, 1344, 1087, 924, 740;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.98-1.05 (m, 3H, SCH2CH2 CH 3), 1.70- 1.77 (m, 2H, SCH2 CH 2CH3), 2.50(s, 3H, SCH 3), 3.12-3.16 (m, 2H, SCH 2CH2 CH3 ), 7.52-7.58 (m, 3H, Ar-H), 7.81 (d, J = 8.0 HZ, 2H, Ar-H), 7.92 (s, 1H, CH=N), 10. 72 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 386 (M+); Anal. Calcd.(%) for C17H18N6OS2: C 52.83, H 4.69, N 21.74; Found C 52.92, H 4.75, N 21.93.
化合物8、13、18、23、28、33、38按化合物3类似的方法制得,其结构鉴定数据如下:
化合物8
3-对甲基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为80%,m.p.299-300℃
C18H20N6OS2
IR (KBr, υ/cm-1): 3417 (N-H), 1630 (C=O), 1568, 1385, 1077, 950, 860;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.98-1.02 (m, 3H, SCH2CH2 CH 3), 1.70 - 1.75 (m, 2H, SCH2 CH 2CH3), 2.38 (s, 3H, ArCH 3), 2.55 (s, 3H, SCH 3), 3.12-3.15 (m, 2H, SCH 2CH2CH3), 7.34 (d, J = 16.0 HZ, 2H, Ar-H), 7.72 (d, J = 8.0 HZ, 2H, Ar-H), 7.89 (s, 1H, CH =N), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 400 (M+); Anal. Calcd.(%) for C18H20N6OS2: C 53.98, H 5.03, N 20.98; Found C 54.14, H 5.16, N 21.21.
化合物13
3-对硝基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为72%,m.p.273-274℃
C17H17N7O3S2
IR (KBr, υ/cm-1): 3413 (N-H), 1640 (C=O), 1585, 1477, 1084, 868, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.98-1.02 (m, 3H, SCH2CH2 CH 3), 1.71-1.73 (m, 2H, SCH2 CH 2CH3), 2.52 (s, 3H, SCH 3), 3.12-3.13 (m, 2H, SCH 2CH2 CH3), 7.92 (s, 1H, CH=N), 8.05 (d, J = 8.0 HZ, 2H, Ar-H), 8.34 (d, J = 8.0 HZ, 2H, Ar-H), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); 13C NMR (δ/ppm, DMSO, TMS, 100MHz): 13.1, 13.9, 22.4, 32.1, 73.7, 122.7, 123.7, 128.4, 130.5, 139.6, 145.4, 148.0, 148.9, 153.4, 159.3, 168.8, 170.1; MS (EI, m/z, % ): 431 (M+); Anal. Calcd.(%) for C17H17N7O3S2: C 47.32, H 3.97, N 22.72; Found C 47.44, H 4.09, N 22.88.
化合物18
3-(3,5-二硝基)苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为70%,m.p. >300℃
C17H16N8O5S2
IR (KBr, υ/ cm-1): 3459, 3344 (N-H), 1627 (C=O), 1576, 1474, 1391, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.98-1.02 (m, 3H, SCH2CH2 CH 3), 1.69-1.75 (m, 2H, SCH2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.11-3.15(m, 2H, SCH 2 CH2CH3), 7.40 (s,1H, Ar-H), 7.53 (s, 1H, Ar-H), 7.64 (s, 1H, Ar-H), 7.91 (s, 1H, CH=N), 10.68 (s, 1H, NH-CO), 12.11 (s, 1H, C=NH); MS (EI, m/z, % ): 476 (M+); Anal. Calcd.(%) for C17H16N8O5S2: C 42.85, H 3.38, N 23.52; Found C 42.72, H 3.43, N 23.65.
化合物23
3-邻氯苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为74%,m.p. 265-267℃
C17H17ClN6OS2
IR (KBr, υ/cm-1): 3444 (N-H), 1630 (C=O), 1567, 1472, 1068, 864, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.89-0.94 (m, 3H, SCH2CH2 CH 3), 1.71-1.75 (m, 2H, SCH2 CH 2CH3), 2.51 (s, 3H, SCH 3), 3.12-3.15 (m, 2H, SCH 2CH2 CH3), 7.41-7.57 (m, 4H, Ar-H), 7.84(s, 1H, CH=N), 10.56 (s, 1H, NH-CO), 12.01 (s, 1H, C= NH); MS (EI, m/z, % ): 421 (M+); Anal. Calcd.(%) for C17H17ClN6OS2: C 48.51, H 4.07, N 19.96; Found C 48.70, H 4.19, N 19.78.
化合物28
3-(1-萘)乙酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为80%,m.p.258-260℃
C22H22N6OS2
IR (KBr, υ/ cm-1): 3426 (N-H), 1633 (C=O), 1595, 1456, 1346,782;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.97-1.00 (m, 3H, SCH2CH2 CH 3), 1.68-1.72 (m, 2H, SCH2 CH 2CH3), 2.34 (s, 3H, SCH 3), 3.01-3.12 (m, 2H, SCH 2CH2 CH3), 4.54 (s, 2H, Ar-CH 2), 7.45-7.92 (m, 7H, Ar-H), 7.94 (s, 1H, CH=N), 9.87 (s, 1H, NH-CO), 12.02 (s, 1H, C=NH); MS( EI, m/z, % ): 450 (M+); Anal. Calcd.(%) for C22H22N6OS2: C 58.64, H 4.92, N 18.65; Found C 58.78, H 4.91, N 18.80.
化合物33
3-(2-呋喃)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为67%,m.p.>300℃
C15H16N6OS2
IR (KBr, υ/ cm-1): 3422, 3305 (N-H), 1629 (C=O), 1517, 1384, 1232, 778;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.98-1.01 (m, 3H, SCH2CH2 CH 3),1.71-1.75 (m, 2H, SCH2 CH 2CH3), 2.49 (s, 3H, SCH 3), 3.12-3.15 (m, 2H, SCH 2 CH2CH3), 6.70 (s, 1H, funan-H), 7.20 (s, 1H, funan-H), 7.91 (s, 1H, CH=N), 7.97 (s, 1H, funan-H), 10.62 (s, 1H, NH-CO),12.13 (s, 1H, C=NH); MS (EI, m/z, % ): 376 (M+); Anal. Calcd.(%) for C15H16N6O2S2: C 47.86, H 4.28, N 22.32; Found C 47.91, H 4.45, N 22.39.
化合物38
3-(4-吡啶)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丙硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为79%,m.p.268-270℃
C16H17N7OS2
IR (KBr, υ/ cm-1): 3440, 3300 (N-H), 1662 (C=O), 1533, 1410, 1312, 750;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.96-1.02 (m, 3H, SCH2CH2 CH 3), 1.67-1.75 (m, 2H, SCH2 CH 2CH3), 2.47 (s, 3H, SCH 3), 3.11-3.15 (m, 2H, SCH 2CH2 CH3), 7.76 (d, J = 24.0 HZ, 2H, pyridine-H), 7.91 (s, 1H, CH=N), 8.73 (d, J = 20.0 HZ, 2H, pyridine-H), 10.72 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 387 (M+); Anal. Calcd.(%) for C16H17N7OS2: C 49.59, H 4.42, N 25.30; Found C 49.70, H 4.49, N 25.53.
实施例4
化合物4的制备
3-苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶啶并[4,5-d]嘧啶
在50mL的圆底烧瓶中,加入0.05mol 2-正丁硫基-4-氨基-5-氰基-6-二甲硫基嘧啶、0.015mol原甲酸三乙酯和催化量的三氟乙酸,搅拌加热回流9小时。反应完后减压除去没有反应的原甲酸三乙酯,残余物用石油醚洗涤数次既得淡黄色固体2-正丁硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,熔点68-69℃,产率80%
将0.001mol 2-正丁硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,0.001mol苯甲酰肼和10mL乙二醇甲醚加入到50mL的圆底烧瓶中,搅拌加热回流5小时。冷却,抽滤。滤饼用少量的乙醚洗涤数次,烘干既得黄色固体,收率为78%,m.p.286-287℃。
C18H20N6OS2
IR (KBr, υ/cm-1): 3438, 3315 (N-H), 1662 (C=O), 1574, 1473, 1333, 1085, 920, 738;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.90-0.94 (m, 3H, SCH2CH2CH2 CH 3), 1.42-1.70 (m, 4H, SCH2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.15-3.18 (m, 2H, SCH 2 CH2CH2CH3), 7.51-7.58 (m, 3H, Ar-H), 7.81 (d, J = 8.0 HZ, 2H, Ar-H), 7.92 (s, 1H, CH=N), 10.72 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH) ; 13C NMR (δ/ppm, DMSO, TMS, 100MHz): 13.9, 14.3, 22.0, 30.5, 31.6, 104.4, 127.3, 129.2, 131.1, 140.5, 146.2, 148.6, 148.9, 153.4, 159.3, 169.1, 170.5; MS (EI, m/z, % ): 400 (M+); Anal. Calcd.(%) for C18H20N6OS2: C 53.98, H 5.03, N 20.98; Found C 54.12, H 5.19, N 21.12.
化合物9、14、19、24、29、34、39按化合物4类似的方法制得,其结构鉴定数据如下:
化合物9
3-对甲基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为82%,m.p. >300℃
C19H22N6OS2
IR (KBr, υ/cm-1): 3444 (N-H),1630 (C=O), 1568, 1424, 1340, 996, 825, 778;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.89-0.93 (m, 3H, SCH2CH2CH2 CH 3), 1.43-1.68 (m, 4H, SCH2 CH 2 CH 2CH3), 2.35 (m, 3H, ArCH 3), 2.50 (s, 3H, SCH 3), 3.16-3.24 (m, 2H, SCH 2CH2CH2CH3), 7.32 (d, J = 4.0 HZ, 2H, Ar-H), 7.72 (d, J = 4.0 HZ, 2H, Ar- H), 7.90 (s, 1H, CH =N), 10.68 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 414 (M+); Anal. Calcd.(%) for C19H22N6OS2: C 55.05, H 5.35, N 20.27; Found C 55.11, H 5.62, N 20.37.
化合物14
3-对硝基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为71%,m.p.217-219℃
C18H19N7O3S2
IR (KBr, υ/cm-1): 3437 (N-H), 1640 (C=O), 1564, 1423, 1087, 948, 779;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.90-0.94 (m, 3H, SCH2CH2CH2 CH 3), 1.40-1.70 (m, 4H, SCH2 CH 2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.16-3.17 (m, 2H, SCH 2CH2CH2CH3), 7.92 (s, 1H, CH=N), 8.05 (d, J = 8.0 HZ, 2H, Ar-H), 8.34 (d, J = 8.0 HZ, 2H, Ar-H), 10.68 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 445 (M+); Anal. Calcd.(%) for C18H19N7O3S2: C 48.53, H 4.30, N 22.01; Found C 48.70, H 4.49, N 22.30.
化合物19
3-(3,5-二硝基)苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶并[4,5-d]嘧碇
所得纯品为黄色固体,收率为71%,m.p. >300℃
C18H18N8O5S2
IR (KBr, υ/ cm-1): 3459, 3340 (N-H), 1628 (C=O), 1578, 1489, 1393, 797;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.90-0.94 (m, 3H, SCH2CH2CH2 CH 3), 1.40-1.70 (m, 4H, SCH2 CH 2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.16-3.25 (m, 2H, SCH 2CH2CH2CH3), 7.39 (s, 1H, Ar-H), 7.53 (s, 1H, Ar-H), 7.63 (s, 1H, Ar-H), 7.93 (s, 1H, CH=N), 10.73 (s, 1H, NH-CO), 12.16 (s, 1H, C=NH); 13C NMR (δ/ppm, DMSO, TMS, 100MHz): 170.5, 169.2, 160.0, 154.1, 150.9 , 149.3, 148.8, 145.4, 136.5, 118.1, 109.8, 31.6, 30.4, 22.0, 14.4, 14.0; MS (EI, m/z, % ): 490 (M+); Anal. Calcd.(%) for C18H18N8O5S2: C 44.07, H 3.70, N 22.84; Found C 44.22, H 3.47, N 22.95.
化合物24
3-邻氯苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为74%,m.p.253-255℃
C18H19ClN6OS2
IR (KBr, υ/cm-1): 3437 (N-H), 1630 (C=O), 1568, 1475, 1343, 1075, 952, 859, 744;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.88-0.94 (m, 3H, SCH2CH2CH2 CH 3), 1.37-1.71 (m, 4H, SCH2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.15-3.18 (m, 2H, SCH 2 CH2CH2CH3), 7.44-7.59 (m, 4H, Ar-H), 7.40~7.56 (m, 4H, Ar-H), 7.84 (s, 1H, CH=N), 10.56 (s, 1H, NH-CO), 12.01 (s, 1H, C=NH); MS (EI, m/z, % ): 435 (M+); Anal. Calcd.(%) for C18H19ClN6OS2: C 49.70, H 4.40, N 19.32; Found C 49.92, H 4.58, N 19.60.
化合物29
3-(1-萘)乙酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为79%,m.p.202-204℃
C23H24N6OS2
IR (KBr, υ/ cm-1): 3423 (N-H), 1631 (C=O), 1591, 1452, 1340,783;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.93-0.96 (m, 3H, SCH2CH2CH2 CH 3),
1.60-1.71 (m, 4H, SCH2 CH 2 CH 2CH3), 2.40 (s, 3H, SCH 3), 3.01-3.12 (m, 2H, SCH 2 CH2CH2CH3), 4.54 (s, 2H, Ar-CH 2), 7.45-7.93 (m, 7H, Ar-H), 7.92 (s, 1H, CH=N), 9.86 (s, 1H, NH-CO), 12.00 (s, 1H, C=NH); MS (EI, m/z, % ): 464 (M+ 100); Anal. Calcd.(%) for C23H24N6OS2: C 59.46, H 5.21, N 18.09; Found C 59.72, H 5.44, N 18.32.
化合物34
3-(2-呋喃)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为65%,m.p.>300℃
C16H18N6O2S2
IR (KBr, υ/ cm-1): 3435, 3304 (N-H), 1629 (C=O), 1575, 1473, 1381, 797;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.92-0.94 (m, 3H, SCH2CH2CH2 CH 3),1.40-1.73 (m, 4H, SCH2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.17-3.26 (m, 2H, SCH 2CH2CH2CH3), 6.65 (s, 1H, funan-H), 7.21 (s, 1H, funan-H), 7.82 (s, 1H, funan-H), 7.88 (s, 1H, CH=N), 10.64 (s, 1H, NH-CO), 12.11 (s, 1H, C=NH); MS (EI, m/z, % ): 390 (M+); Anal. Calcd.(%) for C16H18N6O2S2: C 49.21, H 4.65, N 21.52; Found C 49.44, H 4.79, N 21.61.
化合物39
3-(4-吡啶)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正丁硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为67%,m.p.248-250℃
C17H19N7OS2
IR (KBr, υ/ cm-1): 3441, 3305 (N-H), 1663 (C=O), 1534, 1412, 1310, 763;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.90-0.94 (m, 3H, SCH2CH2CH2 CH 3), 1.40-1.69 (m, 4H, SCH2 CH 2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.15-3.19 (m, 2H, SCH 2CH2 CH2CH3), 7.74 (d, J = 4.0 HZ, 2H, pyridine-H), 7.93 (s, 1H, CH=N), 8.75 (d, J = 8.0 HZ, 2H, pyridine-H), 10.75 (s, 1H, NH-CO), 12.12 (s, 1H, C=NH); 13C NMR (δ/ppm, DMSO, TMS, 100MHz):170.2, 168.9, 159.3, 150.3, 149.2, 148.1, 145.5, 141.1, 123.1, 121.1, 31.1, 29.9, 21.48, 14.0, 13.5; MS (EI, m/z, % ): 401 (M+); Anal. Calcd.(%) for C17H19N7OS2: C 50.85, H 4.77, N 24.42; Found C 50.90, H 4.89, N 24.63.
实施例5
化合物5的制备
3-苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶啶并[4,5-d]嘧啶
在50mL的圆底烧瓶中,加入0.05mol 2-正戊硫基-4-氨基-5-氰基-6-二甲硫基嘧啶、0.015mol原甲酸三乙酯和催化量的三氟乙酸,搅拌加热回流9小时。反应完后减压除去没有反应的原甲酸三乙酯,残余物用石油醚洗涤数次既得淡黄色固体2-正戊硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,熔点64-65℃,产率81%
将0.001mol 2-正戊硫基-4-乙氧基亚甲基氨基-5-氰基-6-甲硫基嘧啶,0.001mol苯甲酰肼和10mL乙二醇甲醚加入到50mL的圆底烧瓶中,搅拌加热回流5小时。冷却,抽滤。滤饼用少量的乙醚洗涤数次,烘干既得黄色固体,收率为78%,m.p.286-287℃
C19H22N6OS2
IR(KBr, υ/cm-1): 3423, 3319 (N-H), 1662 (C=O), 1575, 1472, 1335, 1086, 922, 739;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.86-0.90 (m, 3H, SCH2CH2CH2CH2 CH 3), 1.30-1.72 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 7.50-7.58 (m, 3H, Ar-H), 7.81 (d, J = 8.0 HZ, 2H, Ar-H), 7.92 (s, 1H, CH=N), 10.72 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 414 (M+); Anal. Calcd.(%) for C19H22N6OS2: C 55.05, H 5.35, N 20.27; Found C 55.24, H 5.49, N 20.39.
化合物10、15、20、25、30、35、40按化合物5类似的方法制得,其结构鉴定数据如下:
化合物10
3-对甲基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为82%,m.p. >300℃
C20H24N6OS2
IR (KBr, υ/cm-1): 3437 (N-H), 1630 (C=O), 1571, 1472, 1077, 860, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.87-0.90 (m, 3H, SCH2CH2CH2CH2 CH 3), 1.32-1.70 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.37 (m, 3H, ArCH 3), 2.50 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 7.32 (d, J = 8.0 HZ, 2H, Ar-H), 7.71 (d, J = 8.0 HZ, 2H, Ar-H), 7.91 (s, 1H, CH=N), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS ( EI, m/z, % ): 428 (M+); Anal. Calcd.(%) for C20H24N6OS2: C 56.05, H 5.64, N 19.61; Found C 56.23, H 5.74, N 19.72.
化合物15
3-对硝基苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为71%,m.p.217-219℃
C19H21N7O3S2
IR (KBr, υ/cm-1): 3442 (N-H), 1641 (C=O), 1567, 1424, 1069, 953, 863;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.91-0.94 (m, 3H, SCH2CH2CH2CH2 CH 3), 1.39- 1.72 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 7.91 (s, 1H, CH=N), 8.05 (d, J = 8.0 HZ, 2H, Ar-H), 8.34 (d, J = 8.0 HZ, 2H, Ar-H), 10.68 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS ( EI, m/z, % ): 459 (M+); Anal. Calcd.(%) for C19H21N7O3S2: C 49.66, H 4.61, N 21.34; Found C 49.82, H 4.77, N 21.50.
化合物20
3-(3,5-二硝基)苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶并[4,5-d]嘧碇
所得纯品为黄色固体,收率为70%,m.p. >300℃
C19H20N8O5S2
IR (KBr, υ/ cm-1): 3454, 3329 (N-H), 1628 (C=O), 1576, 1476, 1393, 797;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.91-0.94 (m, 3H, SCH2CH2CH2CH2 CH 3),1.30-1.72 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.13-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 7.40 (s, 1H, Ar-H), 7.53 (s, 1H, Ar-H), 7.60 (s, 1H, Ar-H), 7.93 (s, 1H, CH=N), 10.74 (s, 1H, NH-CO), 12.16 (s, 1H, C=NH); MS (EI, m/z, % ): 504 (M+); Anal. Calcd.(%) for C19H20N8O5S2: C 45.23, H 4.00, N 22.21; Found C 45.41, H 4.17, N 22.42.
化合物25
3-邻氯苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为72%,m.p.237-239℃
C19H21ClN6OS2
IR (KBr, υ/cm-1): 3438 (N-H), 1630 (C=O), 1567, 1467, 1340, 1071, 953, 860, 746;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.85-0.90 (m, 3H, SCH2CH2CH2CH2 CH 3), 1.31-1.71 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.50 (s, 3H, SCH 3), 3.14-3.16 (m, 2H, SCH 2CH2CH2CH2CH3), 7.40-7.55 (m, 4H, Ar-H), 7.84 (s, 1H, CH=N), 10.57 (s, 1H, NH-CO), 12.01 (s, 1H, C=NH); MS ( EI, m/z, % ): 449 (M+); Anal. Calcd.(%) for C19H21ClN6OS2: C 50.83, H 4.71, N 18.72; Found C 50.99, H 4.85, N 18.90.
化合物30
3-(1-萘)乙酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为75%,m.p.212-214℃
C24H26N6OS2
IR (KBr, υ/ cm-1): 3420 (N-H), 1635 (C=O), 1595, 1450, 1345,781;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.89-0.92 (m, 3H, SCH2CH2CH2CH2 CH 3), 1.31-1.70 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.37 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 4.52 (s, 2H, Ar-CH 2), 7.45-7.92 (m, 7H, Ar-H), 7.93 (s, 1H, CH=N),9.87 (s, 1H, NH-CO), 12.03 (s, 1H, C=NH); MS (EI, m/z, % ): 478 (M+); Anal. Calcd.(%) for C24H26N6OS2: C 60.22, H 5.48, N 17.56; Found C 60.38, H 5.64, N 17.66.
化合物35
3-(2-呋喃)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为65%,m.p.280-281℃
C17H20N6OS2
IR (KBr, υ/ cm-1): 3435, 3305 (N-H), 1628 (C=O), 1571, 1473, 1383, 796;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.86-0.90 (m, 3H, SCH2CH2CH2CH2 CH 3),1.31-1.70 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.49 (s, 3H, SCH 3), 3.14-3.17 (m, 2H, SCH 2CH2CH2CH2CH3), 6.70 (s, 1H, funan-H), 7.20 (s, 1H, funan-H), 7.91 (s, 1H, CH=N), 7.97 (s, 1H, funan-H), 10.65 (s, 1H, NH-CO), 12.10 (s, 1H, C=NH); MS (EI, m/z, % ): 404 (M+); Anal. Calcd.(%) for C17H20N6O2S2: C 50.48, H 4.98, N 20.78; Found C 50.72, H 5.09, N 20.88.
化合物40
3-(4-吡啶)甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-正戊硫基嘧啶并[4,5-d]嘧啶
所得纯品为黄色固体,收率为67%,m.p.183-185℃
C18H21N7OS2
IR (KBr, υ/ cm-1): 3443, 3301 (N-H), 1631 (C=O), 1542, 1414, 1321, 767;
1H NMR (δ/ppm, DMSO, TMS, 400MHz): 0.89-0.90 (m, 3H, SCH2CH2CH2CH2 CH 3),1.32-1.70 (m, 6H, SCH2 CH 2 CH 2 CH 2CH3), 2.48 (s, 3H, SCH 3), 3.13-3.15 (m, 2H, SCH 2CH2CH2CH2CH3), 7.74 (d, J = 8.0HZ, 2H, pyridine-H), 7.93 (s, 1H, CH=N), 8.75 (d, J = 8.0HZ, 2H, pyridine-H),10.74 (s, 1H, NH-CO), 12.15 (s, 1H, C=NH); MS (EI, m/z, % ): 415 (M+ 100); Anal. Calcd.(%) for C18H21N7OS2: C 52.03, H 5.09, N 23.60; Found C 52.10, H 5.24, N 23.76.
采用上述类似的方法,可以制备其他的化合物。表1中所列的为本发明合成的部分化合物。
表中省略的符号的含义:Me-甲基、Et-乙基、n-Pr-正丙基、n-Bu-正丁基、正戊基、Ph-苯基
I
表1已合成的部分化合物
本发明式1的化合物制成粒剂、水合剂、乳剂、可流动剂来使用。也可与其它除草剂、杀菌剂、杀虫剂、杀螨剂、植物生长调节剂、肥料以及土壤改良剂混合使用或同时并用。
实施例6
除草活性试验
试验仪器:
电子天平一台、烧杯、滴管、移液管、洗耳球、培养皿、圆形滤纸、刻度尺、蒸馏水、DMF、乳化剂(吐温-80)、待测样品。
供试植物为小麦(Wheat,单叶子杂草(Monocotyledonous weeds))、稗草(Barnyard grass,单叶子杂草(Monocotyledonous weeds))、萝卜(Radish , 双子叶杂草(Dicotyledonous weeds))、黄瓜(Cucumber,双子叶杂草(Dicotyledonous weeds))。
测试方法:
表面皿离体除草活性测试法:
用电子天平称量3-5mg待测样品,加入少量DMF溶解,滴加1滴乳化剂(吐温-80),加3-5mL蒸馏水配成1000mg/mL的溶液,取此溶液1mL加蒸馏水稀释到10mL,即配成100mg/mL的试样溶液,同样取1mL100mg/mL的试样溶液加蒸馏水稀释到10 mL,即配成10mg/mL的试样溶液。用直径为9cm的培养皿,内置两层滤纸及15-20粒小麦、稗草、萝卜和黄瓜的种子,分别加入100mg/mL(100ppm)和10mg/mL(10ppm)的试样溶液作培养液。用上述方法,不用药样溶液,直接用蒸馏水作培养液,作空白对照,用盖子盖上培养皿。将培养皿水平放置在人工培养箱中培养,温度为25℃,培养三天后,每天光照8小时,处理8天后调查测试情况。测定植株根及茎的长度,取其中10株的平均值计算结果。结果为正值说明药剂具有抑制作用,为负值说明药剂具有促进作用。
效果=[(空白平均长度-处理平均长度)/空白平均长度]*100
活性标准:A级:≥90%, B级:≥70%, C级:≥50% ,D级:<50%
I化合物的测试结果见表:
Claims (5)
3.如权利要求1所述的具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶的应用,其特征是通式I作为除草剂的有效成分。
4.如权利要求1所述的具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶的应用,其特征是通式I作为单子叶植物除草剂的有效成分。
5.如权利要求1所述的具有除草活性的3-取代苯甲酰胺基-3,4-二氢-4-亚胺-5-甲硫基-7-烷硫基嘧啶并[4,5-d]嘧啶的应用,其特征是通式I作为双子叶植物除草剂的有效成分。
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