CN112239464A - 一种含1,3,4-噁二唑的喹唑啉-4(3h)-酮类衍生物、制备方法及应用 - Google Patents
一种含1,3,4-噁二唑的喹唑啉-4(3h)-酮类衍生物、制备方法及应用 Download PDFInfo
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- CN112239464A CN112239464A CN201910663677.6A CN201910663677A CN112239464A CN 112239464 A CN112239464 A CN 112239464A CN 201910663677 A CN201910663677 A CN 201910663677A CN 112239464 A CN112239464 A CN 112239464A
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- Prior art keywords
- oxadiazol
- thio
- ethyl
- quinazolin
- methyl
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- FKASFBLJDCHBNZ-UHFFFAOYSA-N 1,3,4-oxadiazole Chemical compound C1=NN=CO1 FKASFBLJDCHBNZ-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 32
- 241000209094 Oryza Species 0.000 claims abstract description 16
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 16
- 235000009566 rice Nutrition 0.000 claims abstract description 16
- 230000001580 bacterial effect Effects 0.000 claims abstract description 13
- 241000196324 Embryophyta Species 0.000 claims abstract description 9
- 241000209140 Triticum Species 0.000 claims abstract description 7
- 235000021307 Triticum Nutrition 0.000 claims abstract description 7
- 201000010099 disease Diseases 0.000 claims abstract 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract 3
- -1 phenylthiomethyl Chemical group 0.000 claims description 35
- QMNUDYFKZYBWQX-UHFFFAOYSA-N 1H-quinazolin-4-one Chemical class C1=CC=C2C(=O)N=CNC2=C1 QMNUDYFKZYBWQX-UHFFFAOYSA-N 0.000 claims description 30
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 20
- HRDXJKGNWSUIBT-UHFFFAOYSA-N methoxybenzene Chemical group [CH2]OC1=CC=CC=C1 HRDXJKGNWSUIBT-UHFFFAOYSA-N 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 13
- 150000002367 halogens Chemical class 0.000 claims description 13
- 150000003254 radicals Chemical class 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- 239000000460 chlorine Substances 0.000 claims description 10
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 8
- WTLDNRVZXMMXSS-UHFFFAOYSA-N 3-[2-[[5-[(4-fluorophenyl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound FC1=CC=C(CC2=NN=C(O2)SCCN2C=NC3=CC=CC=C3C2=O)C=C1 WTLDNRVZXMMXSS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 4
- 229910052794 bromium Inorganic materials 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 125000005842 heteroatom Chemical group 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 4
- CNBMWUSVASURJG-UHFFFAOYSA-N 3-[2-[[5-[(2-methylphenyl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound CC1=C(CC2=NN=C(O2)SCCN2C=NC3=CC=CC=C3C2=O)C=CC=C1 CNBMWUSVASURJG-UHFFFAOYSA-N 0.000 claims description 3
- AODWBNUUOITKDB-UHFFFAOYSA-N 3-[2-[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]-6,7-dimethoxyquinazolin-4-one Chemical compound ClC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC(=C(C=C3C2=O)OC)OC)C=C1 AODWBNUUOITKDB-UHFFFAOYSA-N 0.000 claims description 3
- XEHFTEJRLCBBHX-UHFFFAOYSA-N 3-[2-[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]-8-methylquinazolin-4-one Chemical compound ClC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=C(C=CC=C3C2=O)C)C=C1 XEHFTEJRLCBBHX-UHFFFAOYSA-N 0.000 claims description 3
- HAENRDJMGJEERT-UHFFFAOYSA-N 3-[2-[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound ClC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC=CC=C3C2=O)C=C1 HAENRDJMGJEERT-UHFFFAOYSA-N 0.000 claims description 3
- ULBZMTASLWBTCK-UHFFFAOYSA-N 3-[2-[[5-[(4-fluorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]-6,7-dimethoxyquinazolin-4-one Chemical compound FC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC(=C(C=C3C2=O)OC)OC)C=C1 ULBZMTASLWBTCK-UHFFFAOYSA-N 0.000 claims description 3
- CFCZYSADVSEVNR-UHFFFAOYSA-N 3-[2-[[5-[(4-fluorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound FC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC=CC=C3C2=O)C=C1 CFCZYSADVSEVNR-UHFFFAOYSA-N 0.000 claims description 3
- DOLNTLPTZHZVCZ-UHFFFAOYSA-N 3-[2-[[5-[(4-fluorophenyl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]-6,7-dimethoxyquinazolin-4-one Chemical compound FC1=CC=C(CC2=NN=C(O2)SCCN2C=NC3=CC(=C(C=C3C2=O)OC)OC)C=C1 DOLNTLPTZHZVCZ-UHFFFAOYSA-N 0.000 claims description 3
- HQGWUCWTVOFHCZ-UHFFFAOYSA-N 6-chloro-3-[2-[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound ClC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC=C(C=C3C2=O)Cl)C=C1 HQGWUCWTVOFHCZ-UHFFFAOYSA-N 0.000 claims description 3
- MRULAPGKWQXZGA-UHFFFAOYSA-N 6-chloro-3-[2-[[5-[(4-fluorophenyl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound FC1=CC=C(CC2=NN=C(O2)SCCN2C=NC3=CC=C(C=C3C2=O)Cl)C=C1 MRULAPGKWQXZGA-UHFFFAOYSA-N 0.000 claims description 3
- 125000002941 2-furyl group Chemical group O1C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000006179 2-methyl benzyl group Chemical group [H]C1=C([H])C(=C(C([H])=C1[H])C([H])([H])*)C([H])([H])[H] 0.000 claims description 2
- 125000005809 3,4,5-trimethoxyphenyl group Chemical group [H]C1=C(OC([H])([H])[H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 claims description 2
- DGSUFERDVBRRBC-UHFFFAOYSA-N 3-[2-[[5-[(4-chlorophenyl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound ClC1=CC=C(CC2=NN=C(O2)SCCN2C=NC3=CC=CC=C3C2=O)C=C1 DGSUFERDVBRRBC-UHFFFAOYSA-N 0.000 claims description 2
- 125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 claims description 2
- 125000004176 4-fluorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1F)C([H])([H])* 0.000 claims description 2
- QPTZHUHXHLHFMQ-UHFFFAOYSA-N 6-chloro-3-[2-[[5-[(4-fluorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]ethyl]quinazolin-4-one Chemical compound FC1=CC=C(OCC2=NN=C(O2)SCCN2C=NC3=CC=C(C=C3C2=O)Cl)C=C1 QPTZHUHXHLHFMQ-UHFFFAOYSA-N 0.000 claims description 2
- JRLTTZUODKEYDH-UHFFFAOYSA-N 8-methylquinoline Chemical group C1=CN=C2C(C)=CC=CC2=C1 JRLTTZUODKEYDH-UHFFFAOYSA-N 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000002541 furyl group Chemical group 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 claims description 2
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 claims description 2
- 230000002538 fungal effect Effects 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 abstract description 11
- 241000894006 Bacteria Species 0.000 abstract description 10
- 241000233866 Fungi Species 0.000 abstract description 7
- 206010039509 Scab Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000575 pesticide Substances 0.000 abstract description 4
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 88
- 238000004566 IR spectroscopy Methods 0.000 description 25
- 238000004896 high resolution mass spectrometry Methods 0.000 description 25
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 23
- 238000005160 1H NMR spectroscopy Methods 0.000 description 23
- 239000007787 solid Substances 0.000 description 23
- 230000002401 inhibitory effect Effects 0.000 description 12
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 229910000144 sodium(I) superoxide Inorganic materials 0.000 description 7
- 241000813090 Rhizoctonia solani Species 0.000 description 5
- 239000003899 bactericide agent Substances 0.000 description 5
- COWCNNNWVPGRPF-UHFFFAOYSA-N 3-(2-bromoethyl)quinazolin-4-one Chemical compound C1=CC=C2C(=O)N(CCBr)C=NC2=C1 COWCNNNWVPGRPF-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000001963 growth medium Substances 0.000 description 4
- 244000000010 microbial pathogen Species 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 239000005794 Hymexazol Substances 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 3
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- 239000012634 fragment Substances 0.000 description 3
- KGVPNLBXJKTABS-UHFFFAOYSA-N hymexazol Chemical compound CC1=CC(O)=NO1 KGVPNLBXJKTABS-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000004308 thiabendazole Substances 0.000 description 3
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 3
- 229960004546 thiabendazole Drugs 0.000 description 3
- 235000010296 thiabendazole Nutrition 0.000 description 3
- AVZZKDZHJRRXAD-UHFFFAOYSA-N 5-[(4-fluorophenyl)methyl]-3h-1,3,4-oxadiazole-2-thione Chemical compound C1=CC(F)=CC=C1CC1=NNC(=S)O1 AVZZKDZHJRRXAD-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 241000223218 Fusarium Species 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 241000589771 Ralstonia solanacearum Species 0.000 description 2
- 241001272684 Xanthomonas campestris pv. oryzae Species 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 244000053095 fungal pathogen Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 125000001424 substituent group Chemical group 0.000 description 2
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- WCXDHFDTOYPNIE-RIYZIHGNSA-N (E)-acetamiprid Chemical compound N#C/N=C(\C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-RIYZIHGNSA-N 0.000 description 1
- 150000005072 1,3,4-oxadiazoles Chemical class 0.000 description 1
- RUBRCWOFANAOTP-UHFFFAOYSA-N 3h-1,3,4-oxadiazole-2-thione Chemical compound S=C1NN=CO1 RUBRCWOFANAOTP-UHFFFAOYSA-N 0.000 description 1
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 description 1
- RSNWORHVUOZYLT-UHFFFAOYSA-N 5-[[(2-sulfanylidene-3h-1,3,4-thiadiazol-5-yl)amino]methylamino]-3h-1,3,4-thiadiazole-2-thione Chemical compound S1C(=S)NN=C1NCNC1=NNC(=S)S1 RSNWORHVUOZYLT-UHFFFAOYSA-N 0.000 description 1
- 239000005875 Acetamiprid Substances 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 241000123650 Botrytis cinerea Species 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 239000005785 Fluquinconazole Substances 0.000 description 1
- 241000223195 Fusarium graminearum Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000001888 Peptone Substances 0.000 description 1
- 108010080698 Peptones Proteins 0.000 description 1
- 229920001213 Polysorbate 20 Polymers 0.000 description 1
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- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- SRNKZYRMFBGSGE-UHFFFAOYSA-N [1,2,4]triazolo[1,5-a]pyrimidine Chemical compound N1=CC=CN2N=CN=C21 SRNKZYRMFBGSGE-UHFFFAOYSA-N 0.000 description 1
- GNSPINPIWPZMKW-UHFFFAOYSA-N [1,2,4]triazolo[3,4-b][1,3,4]thiadiazole Chemical compound C1=NN=C2SC=NN21 GNSPINPIWPZMKW-UHFFFAOYSA-N 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
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- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- IJJVMEJXYNJXOJ-UHFFFAOYSA-N fluquinconazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1N1C(=O)C2=CC(F)=CC=C2N=C1N1C=NC=N1 IJJVMEJXYNJXOJ-UHFFFAOYSA-N 0.000 description 1
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- 231100000086 high toxicity Toxicity 0.000 description 1
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- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
本发明属于农药领域,公开了一种含1,3,4‑噁二唑的喹唑啉‑4(3H)‑酮类衍生物、制备方法及应用,该类衍生物的结构如式(I)所示:
Description
技术领域
本发明涉及农药领域,具体来说涉及一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,同时涉及该类衍生物的制备方法,还涉及该类衍生物在防治植物病原微生物方面的应用。
背景技术
每年因植物病原微生物侵染农业经济作物而造成的经济损失巨大。当前,化学防治在治理植物病原微生物的流行爆发方面发挥有重要作用。然而,随着杀菌剂的持续性使用,部分杀菌剂品种逐渐显现出对非靶标生物毒性较大、作用靶点相对单一和对环境污染严重等问题,限制了其在农业生产上的应用。因此,研制具有高效、对靶标生物专一性好和环境友好型的新型杀菌剂对保障农业增产稳产和粮食安全具有重要的作用和意义。
喹唑啉-4(3H)-酮作为一种重要的天然活性亚结构片段被广泛应用在杀菌剂的创制工作中。例如,阿巴康唑和氟喹唑即被开发为抑制病原真菌几丁质生物合成的广谱抑菌剂。近年来的研究表明,在喹唑啉-4(3H)-酮结构的3位引入希夫碱(J.Agric.FoodChem.2013,61:9575-9582;Eur.J.Med.Chem.2014,77:65-74;Chem.Pap.2016,70:1521-1528.)、1,2,4-三唑(Chem.Pap.2016,70:983-993;Chin.J.Org.Chem.2018,38:531-538.)、1,2,4-三唑并[1,5-a]嘧啶(Mol.Divers.2018,22:1-10.)和1,2,4-三唑并[3,4-b][1,3,4]噻二唑(J.Saudi.Chem.Soc.2018,22:101-109.)等含氮结构后所得化合物对植物病原菌具有良好的抑制作用。
另一方面,含有1,3,4-噁二唑活性基团的化合物因具有杀虫、抑真菌、抑细菌和抗病毒等较为广谱的农业生物活性而逐渐受到农药创制工作者的青眯。近年来的研究表明,1,3,4-噁二唑衍生物对烟草青枯菌(J.Agric.Food Chem.2012,60:1036-1041.)、番茄青枯菌(Bioorg.Med.Chem.Lett.2014,24:1677-1680.)、柑橘溃疡病菌(Mol.Diver.2018,22:791-802)和水稻白叶枯菌(Chem.Pap.2017,71:1953-1960.)、对黄瓜灰霉病菌(Chin.J.Pestic.Sci.2004,6(3):71-73)、水稻纹枯病菌、小麦赤霉病菌(Chin.J.Org.Chem.2014,34:1447-1451)等植物病原细菌与真菌表现有良好的抑制效果。
综上,喹唑啉-4(3H)-酮类化合物和1,3,4-噁二唑类化合物对病原真菌和细菌具有广谱的生物活性,对发现新型农药先导化合物具有重要意义。鉴于此,为创制对植物病原微生物具有高效广谱抑制活性的新型化合物,本发明将喹唑啉-4(3H)-酮与1,3,4-噁二唑结构通过硫醚结构片段进行有机结合,设计并合成了一种对植物病原微生物具有明显抑制作用的新型含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物。
发明内容
本发明的目的在于,提供一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物。
本发明的另一目的在于提供含一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物的制备方法。
本发明的第3个目的在于提供上述衍生物的用途。
本发明的第一方面提供了一种具有通式(I)所示结构的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,
在式(I)中,所述各个基团具有如下所述的定义:
R1选自下列1~4个基团:氢原子、卤素、C1~C6烷基、含1~3个卤素的C1~C6烷基、C1~C6烷氧基、硝基;
R2选自苯基、取代苯基、苯基甲基、取代苯基甲基、苯氧基甲基、取代苯氧基甲基、苯硫基甲基、取代苯硫基甲基、芳香杂环基,所述的取代苯基是指其苯环上含有1~5个下列基团:卤素、C1~C6烷基、含1-3个卤素的C1~C6烷基、C1~C6烷氧基、硝基,所述的芳香杂环是指含有1~3个O、N、S杂原子的五元或六元芳香杂环;
以上基团的定义中提及的卤素选自F、Cl、Br、I。
在式(I)中,所述各个基团具有如下所述的优选定义:
R1选自下列1~2个基团:氢原子、卤素、C1~C6烷基、C1~C6烷氧基;
R2选自取代苯基、取代苯基甲基、苯氧基甲基、取代苯氧基甲基、芳香杂环基,所述的取代苯基是指其苯环上含有1~3个下列基团:卤素、C1~C6烷基、C1~C6烷氧基、硝基,所述的芳香杂环是指含有1个O、N、S杂原子的五元芳香杂环;
以上基团的定义中提及的卤素选自F、Cl、Br。
在式(I)中,所述各个基团具有如下所述的进一步优选定义:
R1选自下列1~2个基团:氢原子、Cl、甲基、甲氧基;
R2选自取代苯基、取代苯基甲基、苯氧基甲基、取代苯氧基甲基、呋喃基,所述的取代苯基是指其苯环上含有1~3个下列基团:F、Cl、甲基、甲氧基、硝基。
在式(I)中,所述各个基团具有如表1中所述的更进一步优选定义:
R1选自氢原子、6-氯、8-甲基、6,7-二甲氧基;
R2选自4-氯苯基、4-硝基苯基、3,4,5-三甲氧基苯基、2-甲基苯甲基、4-氯苯甲基、4-氟苯甲基、苯氧基甲基、4-氯苯氧基甲基、4-氟苯氧基甲基、呋喃-2-基。
在式(I)中,所述各个基团具有如表1中所述的特别优选定义:
表1 化合物I的名称及结构
本发明的第二个方面提供了如通式(A)所示的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(I)的制备方法,在三乙胺(Et3N)存在下,含取代基R1的3-(2-溴乙基)喹唑啉-4(3H)-酮(II)与含取代基R2的1,3,4-噁二唑-2-硫醇(III)反应,生成一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(I):
其中在上述各结构式中:
R1、R2均具有如前所述的相应基团的定义。
本发明的第三个方面提供了式(I)所示的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物的应用,该类衍生物对植物病原真菌和细菌具有显著的抑制活性,可应用于防治植物真菌、植物细菌病害。
本发明式(I)的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物适合于抑制水稻白叶枯病菌、水稻纹枯病菌和小麦赤霉病菌,适合用于防治水稻纹枯病、小麦赤霉病、水稻白叶枯病。
有益效果:
本发明与现有技术相比,具有明显的有益效果,从以上技术方案可知:本发明通过硫醚结构片段将1,3,4-噁二唑基团引入喹唑啉-4(3H)-酮的结构中,设计合成了一系列含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(I),该类化合物的结构具有新颖性;将该类化合物应用于抗植物病原细菌和真菌方面的研究,发现此类化合物在抗植物病原细菌和真菌方面拥有突出的抑制活性,体现出本技术方案的显著进步;其中部分化合物对水稻白叶枯病菌、水稻纹枯病菌和小麦赤霉病菌的抑制活性超过对照药剂噻菌铜或恶霉灵,体现了明显的应用性。
具体实施方式
实施例一:3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ia)的合成:
将3-(2-溴乙基)喹唑啉-4(3H)-酮(IIa)(2.50mmol)、5-(4-氟苄基)-1,3,4-噁二唑-2-硫醇(IIIa)(2.50mmol)、三乙胺(7.50mmol)和乙腈(30mL)加入到50mL三口瓶中,体系加热至回流后继续反应约4小时,随后冷却至室温,减压除溶剂,柱层析(V石油醚∶V乙酸乙酯=1∶2),即得化合物3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ia)。
化合物Ib~Iw按照实施例一的方法依次合成。所合成的含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(Ia-Iw)的结构均采用红外光谱(IR)、核磁共振谱(NMR)和高分辨质谱(HRMS)进行了确证。化合物Ia~Iw的理化性质和光谱数据如下所示:
3-(2-((5-(4-氯苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ia):白色固体,m.p.119-121℃,产率65%;IR(KBr,cm-1)v:1673,1607,1556,1484,1370,1321,1178,1154,1089,1020,879,776,696;1H NMR(400MHz,CDCl3)δ8.32(dd,J=8.0,1.0Hz,1H,Qu-5-H),8.06(s,1H,Qu-2-H),7.83-7.72(m,2H,Qu-7,8-2H),7.57-7.52(m,1H,Qu-6-H),7.37-7.33(m,2H,Ph-3,5-2H),7.26(d,J=8.6Hz,2H,Ph-2,6-2H),4.50(t,J=6.4Hz,2H,CH2),4.14(s,2H,CH2),3.65(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ166.35,163.94,161.10,148.10,146.61,134.56,133.75,131.72,130.26,129.18,127.61,127.49,126.57,121.89,45.83,31.19,30.68;HRMS(ESI)m/z[M+Na]+ calcd for C19H15ClN4NaO2S:421.0497,found:421.0498.
3-(2-((5-(2-甲基苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ib):白色固体,m.p.101-103℃,产率58%;IR(KBr,cm-1)v:3088,3054,1670,1613,1570,1485,1371,1325,1275,1155,1014,956,880,775;1H NMR(400MHz,CDCl3)δ8.32(dd,J=8.0,0.9Hz,1H,Qu-5-H),8.08(s,1H,Qu-2-H),7.83-7.73(m,2H,Qu-7,8-2H),7.57-7.52(m,1H,Qu-6-H),7.26-7.20(m,4H,Ph-3,4,5,6-4H),4.49(t,J=6.4Hz,2H,CH2),4.17(s,2H,CH2),3.63(t,J=6.4Hz,2H,CH2),2.40(s,3H,CH3);13C NMR(100MHz,CDCl3)δ166.61,163.63,161.09,148.08,146.66,136.71,134.54,131.83,130.77,129.78,128.02,127.59,127.47,126.58,126.55,121.90,45.87,30.67,29.59,19.61;HRMS(ESI)m/z[M+Na]+ calcd forC20H18N4NaO2S:401.1043,found:401.1042.
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ic):白色固体,m.p.142-144℃,产率83%;IR(KBr,cm-1)v:3058,2361,1668,1602,1509,1486,1364,1320,1216,1013,885,784,744,699;1H NMR(400MHz,CDCl3)δ8.32(dd,J=8.0,1.4Hz,1H,Qu-5-H),8.07(s,1H,Qu-2-H),7.83-7.77(m,1H,Qu-7-H),7.76-7.72(m,1H,Qu-8-H),7.57-7.52(m,1H,Qu-6-H),7.29(dd,J=9.2,4.5Hz,2H,Ph-2,6-2H),7.10-7.02(m,2H,Ph-3,5-2H),4.50(t,J=6.3Hz,2H,CH2),4.14(s,2H,CH2),3.65(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ166.62,163.82,161.08,148.11,146.58,134.51,130.54,130.46,127.59,127.45,126.57,121.91,116.03,115.81,45.86,31.03,30.72;HRMS(ESI)m/z[M+Na]+ calcd for C19H15FN4NaO2S:405.0792,found:405.0798.
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮(Id):白色固体,m.p.151-153℃,产率41%;IR(KBr,cm-1)v:1655,1608,1503,1400,1377,1270,1222,1143,1115,1016,837,784;1H NMR(400MHz,CDCl3)δ7.98(s,1H,Qu-2-H),7.62(s,1H,Qu-5-H),7.32-7.26(m,2H,Ph-2,6-2H),7.12(s,1H,Qu-8-H),7.09-7.03(m,2H,Ph-3,5-2H),4.50(t,J=6.3Hz,2H,CH2),4.15(s,2H,CH2),4.02(s,6H,2CH3),3.64(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ166.60,163.93,163.51,161.06,160.44,155.05,149.48,145.39,144.48,130.54,130.46,129.06,129.02,116.04,115.82,115.28,107.93,105.34,56.34,45.86,31.05,30.81;HRMS(ESI)m/z[M+Na]+ calcd for C21H19FN4NaO4S:465.1003,found:465.1004.
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮(Ie):白色固体,m.p.105-107℃,产率50%;IR(KBr,cm-1)v:1660,1608,1510,1479,1367,1267,1221,1160,1142,1023,889,843,808;1H NMR(400MHz,CDCl3)δ8.28(d,J=2.1Hz,1H,Qu-5-H),8.06(s,1H,Qu-2-H),7.72(dt,J=16.0,5.5Hz,2H,Ph-2,6-2H),7.32-7.29(m,1H,Qu-7-H),7.28(s,1H,Qu-8-H),7.07(t,J=8.6Hz,2H,Ph-3,5-2H),4.50(t,J=6.3Hz,2H,CH2),4.16(s,2H,CH2),3.64(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ166.68,163.78,163.53,161.08,160.10,146.74,146.64,134.93,133.34,130.55,130.47,129.29,129.01,128.98,125.98,122.97,116.06,115.84,45.93,31.06,30.62;HRMS(ESI)m/z[M+Na]+ calcd for C19H14ClFN4NaO2S:439.0402,found:439.0401.
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(If):白色固体,m.p.154-156℃,产率73%;IR(KBr,cm-1)v:1667,1606,1493,1474,1370,1244,1169,1022,833,771,697;1H NMR(400MHz,CDCl3)δ8.32(dd,J=8.0,0.9Hz,1H,Qu-5-H),8.07(s,1H,Qu-2-H),7.83-7.77(m,1H,Qu-7-H),7.74(d,J=8.1Hz,1H,Qu-8-H),7.54(t,J=7.5Hz,1H,Qu-6-H),7.31(d,J=3.4Hz,1H,Ph-2-H),7.28(s,1H,Ph-6-H),6.97(d,J=3.4Hz,1H,Ph-3-H),6.94(s,1H,Ph-5-H),5.20(s,2H,CH2),4.51(t,J=6.3Hz,2H,CH2),3.69(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.19,163.44,161.10,155.97,148.11,146.48,134.55,129.66,127.63,127.50,127.39,126.58,121.90,116.22,59.92,45.88,30.79;HRMS(ESI)m/z[M+Na]+ calcd for C19H15ClN4NaO3S:437.0446,found:437.0448.
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮(Ig):白色固体,m.p.153-155℃,产率78%;IR(KBr,cm-1)v:1681,1606,1491,1472,1374,1320,1235,1168,1149,1019,837;1H NMR(400MHz,CDCl3)δ8.28(d,J=2.2Hz,1H,Qu-5-H),8.06(s,1H,Qu-2-H),7.71(dt,J=17.3,5.5Hz,2H,Qu-7,8-2H),7.29(d,J=8.9Hz,2H,Ph-2,6-2H),6.97(t,J=6.2Hz,2H,Ph-3,5-2H),5.21(s,2H,CH2),4.51(t,J=6.4Hz,2H,CH2),3.68(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.14,163.48,160.11,155.96,146.65,134.96,133.36,129.68,129.32,127.40,125.97,122.95,116.20,59.90,45.95,30.69;HRMS(ESI)m/z[M+Na]+ calcd for C19H14Cl2N4NaO3S:471.0056,found:471.0063.
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮(Ih):白色固体,m.p.199-201℃,产率53%;IR(KBr,cm-1)v:2989,1831,1674,1601,1502,1476,1407,1378,1282,1245,1216,1112,1022,970,854;1H NMR(400MHz,DMSO-d6)δ8.23(s,1H,Qu-2-H),7.46(s,1H,Qu-5-H),7.38(d,J=8.9Hz,2H,Ph-2,6-2H),7.13(s,1H,Qu-8-H),7.09(d,J=8.9Hz,2H,Ph-3,5-2H),5.32(s,2H,CH2),4.37(t,J=5.9Hz,2H,CH2),3.90(s,3H,CH3),3.87(s,3H,CH3),3.68(t,J=5.9Hz,2H,CH2);13C NMR(100MHz,DMSO-d6)δ164.69,163.89,160.01,156.57,155.03,149.26,146.92,144.52,129.87,126.07,117.20,115.00,108.38,105.51,60.16,56.46,56.20,45.46,31.67;HRMS(ESI)m/z[M+Na]+ calcd for C21H19ClN4NaO5S:497.0657,found:497.0649.
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-8-甲基喹唑啉-4(3H)-酮(Ii):白色固体,m.p.137-139℃,产率61%;IR(KBr,cm-1)v:3009,1901,1674,1604,1493,1468,1367,1245,1169,1018,927,820,773,650;1H NMR(400MHz,CDCl3)δ8.17(d,J=8.0Hz,1H,Qu-5-H),8.08(s,1H,Qu-2-H),7.64(d,J=7.3Hz,1H,Qu-7-H),7.43(t,J=7.7Hz,1H,Qu-6-H),7.33-7.27(m,2H,Ph-2,6-2H),6.99-6.94(m,2H,Ph-3,5-2H),5.20(s,2H,CH2),4.51(t,J=6.3Hz,2H,CH2),3.70(t,J=6.3Hz,2H,CH2),2.63(s,3H,CH3);13CNMR(100MHz,CDCl3)δ165.22,163.42,161.44,155.98,146.73,145.34,136.11,135.23,129.67,127.38,127.08,124.26,121.87,116.22,59.90,45.73,30.86,17.43;HRMS(ESI)m/z[M+Na]+ calcd for C20H17ClN4NaO3S:451.0602,found:451.0600.
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮(Ij):白色固体,m.p.155-157℃,产率53%;IR(KBr,cm-1)v:2945,1667,1606,1508,1473,1365,1249,1172,1018,974,875,826,770,694;1H NMR(400MHz,CDCl3)δ8.32(d,J=8.0Hz,1H,Qu-5-H),8.07(s,1H,Qu-2-H),7.83-7.77(m,1H,Qu-7-H),7.74(d,J=7.6Hz,1H,Qu-8-H),7.57-7.52(m,1H,Qu-6-H),7.00(tdd,J=9.3,8.0,3.5Hz,4H,Ph-2,3,5,6-4H),5.19(s,2H,CH2),4.51(t,J=6.4Hz,2H,CH2),3.70(t,J=6.4Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.11,163.63,161.10,159.31,156.92,153.53,153.51,148.11,146.49,134.54,127.62,127.49,126.58,121.90,116.33,116.29,116.21,116.09,60.42,45.87,30.78;HRMS(ESI)m/z[M+Na]+ calcd for C19H15FN4NaO3S:421.0741,found:421.0749.
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮(Ik):白色固体,m.p.171-173℃,产率50%;IR(KBr,cm-1)v:2983,2355,1674,1608,1503,1479,1378,1285,1216,1173,1115,1017,972,830,804;1H NMR(400MHz,CDCl3)δ8.00(s,1H,Qu-2-H),7.63(s,1H,Qu-5-H),7.14(s,1H,Qu-8-H),7.07-6.95(m,4H,Ph-2,3,5,6-4H),5.20(s,2H,CH2),4.51(t,J=6.3Hz,2H,CH2),4.02(s,6H,2CH3),3.70(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.22,163.61,160.44,159.32,156.93,155.09,153.53,153.51,149.52,145.31,144.46,116.34,116.27,116.19,116.11,115.27,107.94,105.35,60.42,56.35,45.90,30.88;HRMS(ESI)m/z[M+Na]+ calcd forC21H19FN4NaO5S:481.0952,found:481.0952.
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮(Il):白色固体,m.p.138-140℃,产率35%;IR(KBr,cm-1)v:1658,1609,1508,1473,1466,1379,1325,1248,1172,1142,1026,835,825,807,645;1H NMR(400MHz,CDCl3)δ8.28(d,J=2.2Hz,1H,Qu-5-H),8.06(s,1H,Qu-2-H),7.71(dt,J=17.2,5.5Hz,2H,Qu-7,8-2H),7.07-6.94(m,4H,Ph-2,3,5,6-4H),5.20(s,2H,CH2),4.51(t,J=6.4Hz,2H,CH2),3.68(t,J=6.4Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.07,163.68,160.13,159.33,156.94,153.52,153.50,146.65,134.97,133.38,129.33,125.99,122.96,116.36,116.27,116.19,116.13,60.41,45.95,30.68;HRMS(ESI)m/z[M+Na]+ calcd for C19H14ClFN4NaO3S:455.0351,found:455.0353.
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基))-8-甲基喹唑啉-4(3H)-酮(Im):白色固体,m.p.103-105℃,产率54%;IR(KBr,cm-1)v:3067,2918,1881,1670,1604,1509,1470,1365,1329,1168,1138,1024,931,827,808,769;1H NMR(400MHz,CDCl3)δ8.18(d,J=8.0Hz,1H,Qu-5-H),8.09(s,1H,Qu-2-H),7.65(d,J=7.3Hz,1H,Qu-8-H),7.43(t,J=7.6Hz,1H,Qu-7-H),7.07-6.96(m,4H,Ph-2,3,5,6-4H),5.19(s,2H,CH2),4.52(t,J=6.3Hz,2H,CH2),3.70(t,J=6.3Hz,2H,CH2),2.64(s,3H,CH3);13C NMR(100MHz,CDCl3)δ165.15,163.62,161.44,159.34,156.95,153.55,153.53,146.73,145.33,136.12,135.23,127.09,124.27,121.88,116.34,116.30,116.22,116.11,60.42,45.73,30.85,17.41;HRMS(ESI)m/z[M+Na]+ calcd for C20H17FN4NaO3S:435.0898,found:435.0896.
3-(2-((5-(苯氧甲基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮(In):白色固体,m.p.117-119℃,产率44%;IR(KBr,cm-1)v:1664,1607,1497,1474,1365,1249,1170,1153,1018,877,771,752,693;1H NMR(400MHz,CDCl3)δ8.33(d,J=8.0Hz,1H,Qu-5-H),8.10(s,1H,Qu-2-H),7.80(t,J=7.3Hz,1H,Qu-7-H),7.76(d,J=8.1Hz,1H,Qu-8-H),7.55(t,J=7.4Hz,1H,Qu-6-H),7.35(t,J=7.7Hz,2H,Ph-2,6-2H),7.05(dd,J=15.2,8.0Hz,3H,Ph-3,4,5-3H),5.24(s,2H,CH2),4.51(t,J=6.4Hz,2H,CH2),3.69(t,J=6.4Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.03,163.85,161.11,157.42,148.06,146.56,134.57,129.76,127.59,127.52,126.61,122.33,121.90,114.84,59.67,45.92,30.79;HRMS(ESI)m/z[M+Na]+ calcd for C19H16N4NaO3S:403.0835,found:403.0838.
3-(2-((5-(4-硝基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮(Io):白色固体,m.p.206-208℃,产率56%;IR(KBr,cm-1)v:3117,1691,1667,1607,1560,1520,1470,1343,1192,1152,1059,1006,854,777,708;1H NMR(400MHz,CDCl3)δ8.39(d,J=8.9Hz,2H,Ph-3,5-2H),8.32(dd,J=8.0,1.1Hz,1H,Qu-5-H),8.20(d,J=8.9Hz,2H,Ph-2,6-2H),8.11(s,1H,Qu-2-H),7.82-7.76(m,1H,Qu-7-H),7.73(d,J=7.5Hz,1H,Qu-8-H),7.53(dd,J=11.0,4.0Hz,1H,Qu-6-H),4.57(t,J=6.3Hz,2H,CH2),3.78(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ164.91,164.39,161.13,149.59,148.14,146.41,134.57,128.68,127.66,127.61,127.50,126.59,124.43,121.87,45.96,30.86;HRMS(ESI)m/z[M+Na]+ calcd for C18H13N5NaO4S:418.0581,found:418.0582.
3-(2-((5-(4-硝基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮(Ip):白色固体,m.p.219-221℃,产率53%;IR(KBr,cm-1)v:3067,1685,1601,1516,1470,1376,1350,1321,1190,1143,1059,857,831,708;1H NMR(400MHz,CDCl3)δ8.40(d,J=8.9Hz,2H,Ph-3,5-2H),8.27(d,J=2.2Hz,1H,Qu-5-H),8.20(d,J=8.9Hz,2H,Ph-2,6-2H),8.10(s,1H,Qu-2-H),7.71(dt,J=15.7,5.5Hz,2H,Qu-7,8-2H),4.57(t,J=6.3Hz,2H,CH2),3.78(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ164.81,164.44,160.14,149.65,146.59,135.05,133.48,129.31,128.61,127.64,126.03,124.48,122.89,46.16,30.73;HRMS(ESI)m/z[M+Na]+ calcd for C18H12ClN5NaO4S:452.0191,found:452.0194.
3-(2-((5-(3,4,5-三甲氧基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮(Iq):白色固体,m.p.174-176℃,产率62%;IR(KBr,cm-1)v:2946,2830,1683,1610,1556,1503,1356,1240,1125,1001,965,860,835,771,718,693;1H NMR(400MHz,CDCl3)δ8.31(dd,J=8.0,1.0Hz,1H,Qu-5-H),8.11(s,1H,Qu-2-H),7.82-7.70(m,2H,Qu-7,8-2H),7.56-7.50(m,1H,Qu-6-H),7.23(s,2H,Ph-2,6-2H),4.56(t,J=6.3Hz,2H,CH2),3.96(s,6H,2CH3),3.94(s,3H,CH3),3.74(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ166.03,162.93,161.10,153.62,148.11,146.63,141.05,134.50,127.60,127.43,126.53,121.85,118.26,103.80,61.04,56.35,45.93,30.71;HRMS(ESI)m/z[M+Na]+ calcd forC21H20N4NaO5S:463.1047,found:463.1054.
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮(Ir):白色固体,m.p.135-137℃,产率46%;IR(KBr,cm-1)v:1686,1609,1488,1473,1371,1194,1089,1071,874,834,768;1H NMR(400MHz,CDCl3)δ8.32(d,J=8.0Hz,1H,Qu-5-H),8.12(s,1H,Qu-2-H),7.97-7.89(m,2H,Ph-2,6-2H),7.82-7.69(m,2H,Qu-7,8-2H),7.57-7.44(m,3H,Ph-3,5-2H,Qu-6-H),4.57(t,J=6.3Hz,2H,CH2),3.74(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.33,163.49,161.12,148.10,146.60,138.17,134.55,129.51,127.96,127.62,127.47,126.57,121.86,121.68,45.94,30.78;HRMS(ESI)m/z[M+Na]+calcd for C18H13ClN4NaO2S:407.0340,found:407.0345.
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6,7-二甲氧基喹唑啉-4(3H)-酮(Is):白色固体,m.p.105-107℃,产率62%;IR(KBr,cm-1)v:3079,2954,2834,1677,1603,1506,1377,1288,1167,1117,1021,868,831,782,727,694;1H NMR(400MHz,CDCl3)δ8.05(s,1H,Qu-2-H),7.97-7.92(m,2H,Ph-2,6-2H),7.61(s,1H,Qu-5-H),7.53-7.49(m,2H,Ph-3,5-2H),7.13(s,1H,Qu-8-H),4.55(t,J=6.3Hz,2H,CH2),4.02(s,6H,2CH3),3.75(t,J=6.2Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.29,163.52,160.45,155.02,149.44,145.36,144.51,138.16,129.47,127.95,121.72,115.21,107.95,105.31,56.33,56.31,46.09,30.94;HRMS(ESI)m/z[M+Na]+ calcd for C20H17ClN4NaO4S:467.0551,found:467.0550.
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-8-甲基喹唑啉-4(3H)-酮(It):白色固体,m.p.169-171℃,产率47%;IR(KBr,cm-1)v:1677,1606,1474,1365,1189,1136,1091,833,768,728;1H NMR(400MHz,CDCl3)δ8.18(d,J=8.0Hz,1H,Qu-5-H),8.13(s,1H,Qu-2-H),7.98-7.92(m,2H,Ph-2,6-2H),7.64(d,J=7.3Hz,1H,Qu-7-H),7.53-7.49(m,2H,Ph-3,5-2H),7.42(t,J=7.7Hz,1H,Qu-6-H),4.57(t,J=6.2Hz,2H,CH2),3.75(t,J=6.2Hz,2H,CH2),2.62(s,3H,CH3);13C NMR(100MHz,CDCl3)δ165.32,163.50,161.46,146.73,145.39,138.18,136.10,135.19,129.51,127.96,127.04,124.27,121.85,121.73,45.84,30.88,17.43;HRMS(ESI)m/z[M+Na]+ calcd for C19H15ClN4NaO2S:421.0497,found:421.0497.
3-(2-((5-(呋喃-2-基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮(Iu):白色固体,m.p.114-116℃,产率48%;IR(KBr,cm-1)v:3096,1681,1610,1471,1371,1292,1209,1155,1088,1018,898,772,750,698;1H NMR(400MHz,CDCl3)δ8.32(dd,J=8.0,1.0Hz,1H,Qu-5-H),8.10(s,1H,Qu-2-H),7.82-7.71(m,2H,Qu-7,8-2H),7.65(dd,J=1.7,0.6Hz,1H,Furan-5-H),7.56-7.50(m,1H,Qu-6-H),7.15-7.12(m,1H,Furan-4-H),6.61(dd,J=3.5,1.8Hz,1H,Furan-3-H),4.54(t,J=6.3Hz,2H,CH2),3.73(t,J=6.3Hz,2H,CH2);13CNMR(100MHz,CDCl3)δ162.68,161.11,158.85,148.14,146.58,145.88,138.76,134.48,127.62,127.41,126.56,121.89,114.29,112.19,45.93,30.88;HRMS(ESI)m/z[M+Na]+calcd for C16H12N4NaO3S:363.0522,found:363.0524.
3-(2-((5-(呋喃-2-基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮(Iv):白色固体,m.p.150-152℃,产率48%;IR(KBr,cm-1)v:1666,1607,1468,1364,1326,1199,1162,1148,1090,1016,899,854,749;1H NMR(400MHz,CDCl3)δ8.28(d,J=2.1Hz,1H,Qu-5-H),8.10(s,1H,Qu-2-H),7.70(ddd,J=12.1,6.0,1.6Hz,3H,Qu-7,8-2H,Furan-5-H),7.15(d,J=3.5Hz,1H,Furan-3-H),6.62(dd,J=3.5,1.7Hz,1H,Furan-4-H),4.55(t,J=6.3Hz,2H,CH2),3.72(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ162.60,160.15,158.92,146.76,146.64,145.96,138.71,134.96,133.35,129.31,125.99,122.94,114.39,112.25,46.10,30.76;HRMS(ESI)m/z[M+Na]+ calcd for C16H11ClN4NaO3S:397.0133,found:397.0134.
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮(Iw):白色固体,m.p.179-181℃,产率55%;IR(KBr,cm-1)v:1676,1606,1469,1370,1322,1194,1145,1084,1005,830,725,640;1H NMR(400MHz,CDCl3)δ8.27(d,J=2.1Hz,1H,Qu-5-H),8.10(s,1H,Qu-2-H),7.96-7.91(m,2H,Ph-2,6-2H),7.70(dt,J=15.4,5.5Hz,2H,Qu-7,8-2H),7.54-7.48(m,2H,Ph-3,5-2H),4.56(t,J=6.3Hz,2H,CH2),3.73(t,J=6.3Hz,2H,CH2);13C NMR(100MHz,CDCl3)δ165.38,163.37,160.12,146.71,146.62,138.27,134.94,133.35,129.53,129.30,127.96,125.98,122.90,121.64,46.13,30.70;HRMS(ESI)m/z[M+Na]+ calcd for C18H12Cl2N4NaO2S:440.9950,found:440.9951.
实施例二:含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(Ia-Iw)的抑菌活性
测试方法:
采用浊度法测试了含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(Ia-Iw)对水稻白叶枯病菌(Xanthomonas oryzae pv.oryzae,Xoo)的抑制活性,具体操作步骤如下:1)于1000mL灭菌蒸馏水中加入蛋白胨5.0g、酵母粉1.0g、葡萄糖10.0g、牛肉膏3.0g,调节pH至中性(7.2±0.2);2)向每支试管内移取第一步中的溶液4.0mL,在121℃灭菌20min后待用;3)称取4mg待测样品于离心管中,以320μL DMSO溶解,移取80μL到离心管中,加入4mL的0.1%Tween-20溶液。设噻菌铜或叶枯唑作对照药剂,DMSO作空白对照;4)从离心管内移取1mL溶液到3支第二步中的试管内;5)取96孔板,测空白OD值,排除OD值大于0.05的孔,向每个可用孔中加入200μL第4步中试管内溶液,测OD值,最后向每支试管中接入40μL活化后的水稻白叶枯菌种,在30℃、180rpm恒温摇床中振荡培养24~48h,期间测试试管内溶液OD值以跟踪细菌生长状态,培养结束后在试管中取200μL溶液,测OD值;6)化合物对细菌抑制率计算公式如下:抑菌率=(对照菌液OD值-样品菌液OD值)/对照菌液OD值×100%,其中,菌液OD值=含菌培养基OD值-无菌培养基OD值。
采用菌丝生长速度法测定了一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物(Ia-Iw)对小麦赤霉病菌(Fusarium graminearum,Fg)和水稻纹枯病菌(Rhizoctoniasolani,Rs)的抑制活性,具体操作步骤如下:1)称取一定量的化合物溶于一定体积的DMSO中,得到一定浓度的母液;2)量取100μL母液加入到45mL已灭菌的土豆琼脂培养基中,震荡均匀;3)将上述培养基均匀倒入3皿直径为9厘米的培养皿中,待其凝固后,将直径为5毫米的菌饼转接至培养皿中心;4)将上述培养皿在25±1℃条件下,培养至菌落直接约为7.0至7.5厘米后,测定菌落直径,计算各药剂的抑制率。5)化合物对真菌抑制率计算公式如下:抑菌率=(空白对照菌落直径-测试药剂菌落直径)÷(空白对照菌落直径-5mm)×100%。
化合物Ia-Iw对水稻白叶枯病菌(Xoo)、水稻纹枯病菌(Rs)和小麦赤霉病菌(Fg)的抑制活性测定结果如表2所示。
表2 化合物Ia-Iw对3种病菌的抑制活性a(50μg/mL)
a三次重复,取其平均值。
化合物(Ia-Iw)在50μg/mL时对水稻白叶枯菌(Xoo)的抑制活性测试结果(见表2)表明,大部分化合物对水稻白叶枯菌具有明显的抑制活性。其中,化合物Ie-Ig和Ii-Iw对水稻白叶枯菌的抑制率介于分别为32.15%-54.11%,优于对照药剂噻菌铜(31.64%)。
化合物(Ia-Iw)在50μg/mL时对水稻纹枯病菌(Rs)和小麦赤霉病菌(Fg)的抑制活性测试结果(见表2)表明,化合物Ia、Ib、Ic、Ie、Ii、Im、Ir和Iu对水稻纹枯病菌的抑制率分别为70.61、58.26、52.88、59.95、65.45、70.89、73.47和73.74%,优于对照药剂恶霉灵(33.90%)。化合物Ii、Im和Ir对小麦赤霉病菌的抑制率分别为52.17、52.42和59.42%,优于对照药剂恶霉灵(46.86%)。
以上所述,仅是本发明的较佳实施案例而已,并非对本发明作任何形式上的限制,任何未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化与修饰,均属于本发明技术方案的范畴。
Claims (8)
2.根据权利要求1所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,其特征在于:
R1选自下列1~2个基团:氢原子、卤素、C1~C6烷基、C1~C6烷氧基;
R2选自取代苯基、取代苯基甲基、苯氧基甲基、取代苯氧基甲基、芳香杂环基,所述的取代苯基是指其苯环上含有1~3个下列基团:卤素、C1~C6烷基、C1~C6烷氧基、硝基,所述的芳香杂环是指含有1个O、N、S杂原子的五元芳香杂环;
以上基团的定义中提及的卤素选自F、Cl、Br。
3.根据权利要求2所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,其特征在于:
R1选自下列1~2个基团:氢原子、Cl、甲基、甲氧基;
R2选自取代苯基、取代苯基甲基、苯氧基甲基、取代苯氧基甲基、呋喃基,所述的取代苯基是指其苯环上含有1~3个下列基团:F、Cl、甲基、甲氧基、硝基。
4.根据权利要求3所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,其特征在于:
R1选自氢原子、6-氯、8-甲基、6,7-二甲氧基;
R2选自4-氯苯基、4-硝基苯基、3,4,5-三甲氧基苯基、2-甲基苯甲基、4-氯苯甲基、4-氟苯甲基、苯氧基甲基、4-氯苯氧基甲基、4-氟苯氧基甲基、呋喃-2-基。
5.根据权利要求4所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物,其特征在于其为如下所述化合物之一:
3-(2-((5-(4-氯苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮、
3-(2-((5-(2-甲基苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮、
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮、
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮、
3-(2-((5-(4-氟苄基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮、
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮、
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮、
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮、
3-(2-((5-((4-氯苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-8-甲基喹唑啉-4(3H)-酮、
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)喹唑啉-4(3H)-酮、
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6,7-二甲氧基喹唑啉-4(3H)-酮、
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基)-6-氯喹唑啉-4(3H)-酮、
3-(2-((5-((4-氟苯氧基)甲基)-1,3,4-噁二唑-2-基)硫基)乙基))-8-甲基喹唑啉-4(3H)-酮、
3-(2-((5-(苯氧甲基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮、
3-(2-((5-(4-硝基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮、
3-(2-((5-(4-硝基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮、
3-(2-((5-(3,4,5-三甲氧基苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮、
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮、
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6,7-二甲氧基喹唑啉-4(3H)-酮、
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-8-甲基喹唑啉-4(3H)-酮、
3-(2-((5-(呋喃-2-基)-1,3,4-噁二唑-2-基)硫基)乙基))喹唑啉-4(3H)-酮、
3-(2-((5-(呋喃-2-基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮、
3-(2-((5-(4-氯苯基)-1,3,4-噁二唑-2-基)硫基)乙基))-6-氯喹唑啉-4(3H)-酮。
7.权利要求1~5中任一项所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物在防治植物真菌病害、植物细菌病害方面的应用。
8.根据权利要求7所述的应用,其特征在于权利要求1~5中任一项所述的一种含1,3,4-噁二唑的喹唑啉-4(3H)-酮类衍生物在防治水稻纹枯病、小麦赤霉病、水稻白叶枯病方面的应用。
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