CN113583000A - 一种制备咪唑并[1,5-a]吲哚-3-酮的方法 - Google Patents
一种制备咪唑并[1,5-a]吲哚-3-酮的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 18
- NVMKNUWKOPYMRL-UHFFFAOYSA-N imidazo[1,5-a]indol-1-one Chemical compound C1=CC=C2N3C(=O)N=CC3=CC2=C1 NVMKNUWKOPYMRL-UHFFFAOYSA-N 0.000 title claims description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 claims abstract description 56
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 claims abstract description 28
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 claims abstract description 28
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000654 additive Substances 0.000 claims abstract description 23
- 230000000996 additive effect Effects 0.000 claims abstract description 21
- 238000006352 cycloaddition reaction Methods 0.000 claims abstract description 16
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 150000001345 alkine derivatives Chemical class 0.000 claims abstract description 13
- 230000002950 deficient Effects 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 229960000583 acetic acid Drugs 0.000 claims abstract description 9
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 9
- OXKVPNMBQUHJHF-UHFFFAOYSA-M sodium;2,2-dimethylpropanoate;hydrate Chemical group O.[Na+].CC(C)(C)C([O-])=O OXKVPNMBQUHJHF-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000010948 rhodium Substances 0.000 claims abstract description 4
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 89
- -1 imidazo [1,5-a ] indol-3-one compound Chemical class 0.000 claims description 51
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 39
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000006467 substitution reaction Methods 0.000 claims description 3
- FKLJPTJMIBLJAV-UHFFFAOYSA-N Compound IV Chemical compound O1N=C(C)C=C1CCCCCCCOC1=CC=C(C=2OCCN=2)C=C1 FKLJPTJMIBLJAV-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 2
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 2
- 125000004434 sulfur atom Chemical group 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 20
- 125000000524 functional group Chemical group 0.000 abstract description 6
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- 239000000126 substance Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 348
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 228
- 239000003208 petroleum Substances 0.000 description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 59
- 238000003818 flash chromatography Methods 0.000 description 59
- 239000000741 silica gel Substances 0.000 description 59
- 229910002027 silica gel Inorganic materials 0.000 description 59
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 58
- 238000005160 1H NMR spectroscopy Methods 0.000 description 58
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- 239000007787 solid Substances 0.000 description 22
- VZWGNYPBXKDHRY-UHFFFAOYSA-N 2,3-dihydroimidazo[1,5-a]indol-1-one Chemical group C1=CC=C2N3C(=O)NCC3=CC2=C1 VZWGNYPBXKDHRY-UHFFFAOYSA-N 0.000 description 11
- 239000011734 sodium Substances 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 229910004373 HOAc Inorganic materials 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 5
- DRLFMBDRBRZALE-UHFFFAOYSA-N melatonin Chemical compound COC1=CC=C2NC=C(CCNC(C)=O)C2=C1 DRLFMBDRBRZALE-UHFFFAOYSA-N 0.000 description 5
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-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
- YJPIGAIKUZMOQA-UHFFFAOYSA-N Melatonin Natural products COC1=CC=C2N(C(C)=O)C=C(CCN)C2=C1 YJPIGAIKUZMOQA-UHFFFAOYSA-N 0.000 description 4
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 229960003987 melatonin Drugs 0.000 description 4
- 229930014626 natural product Natural products 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000001308 synthesis method Methods 0.000 description 4
- 238000010499 C–H functionalization reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 125000000593 indol-1-yl group Chemical group [H]C1=C([H])C([H])=C2N([*])C([H])=C([H])C2=C1[H] 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- ZVGFQLLANUEVEQ-UHFFFAOYSA-N (4-methylphenyl) 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OC1=CC=C(C=C1)C)=O ZVGFQLLANUEVEQ-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- 125000004179 3-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(Cl)=C1[H] 0.000 description 2
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 description 2
- 125000004801 4-cyanophenyl group Chemical group [H]C1=C([H])C(C#N)=C([H])C([H])=C1* 0.000 description 2
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- HOWGUJZVBDQJKV-UHFFFAOYSA-N docosane Chemical compound CCCCCCCCCCCCCCCCCCCCCC HOWGUJZVBDQJKV-UHFFFAOYSA-N 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 2
- 230000000144 pharmacologic effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- IOWHYGLDZNRBFX-UHFFFAOYSA-N (3-methylphenyl) 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OC=1C=C(C=CC=1)C)=O IOWHYGLDZNRBFX-UHFFFAOYSA-N 0.000 description 1
- UHMBTJVBCBULTK-UHFFFAOYSA-N 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)-N-phenylacetamide Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)NC1=CC=CC=C1)=O UHMBTJVBCBULTK-UHFFFAOYSA-N 0.000 description 1
- ZYEYYSFKSLYLHA-UHFFFAOYSA-N 2-methoxy-3-phenacyl-3H-imidazo[1,5-a]indol-1-one Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(C1=CC=CC=C1)=O)=O ZYEYYSFKSLYLHA-UHFFFAOYSA-N 0.000 description 1
- 125000004204 2-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C(OC([H])([H])[H])C([H])=C1[H] 0.000 description 1
- 125000006306 4-iodophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1I 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- JAEBKTCSZZQSIC-UHFFFAOYSA-N CN(C(CC(C1=CC(C=CC=C2)=C2N1C1=C=O)N1OC)=O)C1=CC=CC=C1 Chemical compound CN(C(CC(C1=CC(C=CC=C2)=C2N1C1=C=O)N1OC)=O)C1=CC=CC=C1 JAEBKTCSZZQSIC-UHFFFAOYSA-N 0.000 description 1
- YYYKVJIYKXKGAD-UHFFFAOYSA-N CON(C(CC(C1=CC=CC=C1)=C=O)C1=CC(C=CC=C2)=C2N11)C1=O Chemical compound CON(C(CC(C1=CC=CC=C1)=C=O)C1=CC(C=CC=C2)=C2N11)C1=O YYYKVJIYKXKGAD-UHFFFAOYSA-N 0.000 description 1
- XNWUACWXMASTKK-UHFFFAOYSA-N CON(C(CC(NC1=CC=CC=C1)=O)C1=CC(C=CC=C2)=C2N11)C1=C=O Chemical compound CON(C(CC(NC1=CC=CC=C1)=O)C1=CC(C=CC=C2)=C2N11)C1=C=O XNWUACWXMASTKK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- VLVLYFHVOUVCHR-UHFFFAOYSA-N N-benzyl-2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetamide Chemical compound C(C1=CC=CC=C1)NC(CC1N(C(N2C1=CC=1C=CC=CC2=1)=O)OC)=O VLVLYFHVOUVCHR-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- TYALFHCQNODWCW-UHFFFAOYSA-N benzyl 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OCC1=CC=CC=C1)=O TYALFHCQNODWCW-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- DHCWLIOIJZJFJE-UHFFFAOYSA-L dichlororuthenium Chemical compound Cl[Ru]Cl DHCWLIOIJZJFJE-UHFFFAOYSA-L 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 125000006575 electron-withdrawing group Chemical group 0.000 description 1
- HIOKFUBVEMXINZ-UHFFFAOYSA-N ethyl 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OCC)=O HIOKFUBVEMXINZ-UHFFFAOYSA-N 0.000 description 1
- FMVJYQGSRWVMQV-UHFFFAOYSA-N ethyl propiolate Chemical compound CCOC(=O)C#C FMVJYQGSRWVMQV-UHFFFAOYSA-N 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- LIRDJALZRPAZOR-UHFFFAOYSA-N indolin-3-one Chemical group C1=CC=C2C(=O)CNC2=C1 LIRDJALZRPAZOR-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 150000002527 isonitriles Chemical class 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000002974 melatonin derivative Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- CQJOLJIEPJFHNO-UHFFFAOYSA-N methyl 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OC)=O CQJOLJIEPJFHNO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GRLFRVUIIYVGDI-UHFFFAOYSA-N phenyl 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OC1=CC=CC=C1)=O GRLFRVUIIYVGDI-UHFFFAOYSA-N 0.000 description 1
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 1
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- AFKKDLOOHGDCQB-UHFFFAOYSA-N tert-butyl 2-(2-methoxy-1-oxo-3H-imidazo[1,5-a]indol-3-yl)acetate Chemical compound CON1C(N2C(=CC=3C=CC=CC2=3)C1CC(=O)OC(C)(C)C)=O AFKKDLOOHGDCQB-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Indole Compounds (AREA)
Abstract
本发明提供了一种咪唑并[1,5‑a]吲哚‑3‑酮骨架化合物及其制备方法,采用铑催化吲哚与缺电子炔烃之间的[4+1]环加成反应制备咪唑并[1,5‑a]吲哚‑3‑酮类化合物,催化剂为[Cp*RhCl2]2,添加剂为特戊酸钠水合物和冰醋酸,溶剂为1,2‑二氯乙烷;所述吲哚和烯烃的摩尔比为1:1.2,催化剂的用量为吲哚摩尔量的5%,特戊酸钠水合物添加剂与吲哚的摩尔比为2:1,冰醋酸添加剂与吲哚的摩尔比为2:1。本发明方法具有底物适用范围广、化学选择性和区域选择性高、产率良好、官能团耐受性好、反应步骤经济、温和的中性反应条件等优点。其中咪唑并[1,5‑a]吲哚‑3‑酮类化合物的结构式为:
Description
技术领域
本发明属于有机合成技术领域,具体涉及一种制备咪唑并[1,5-a]吲哚-3-酮类化合物的方法。
背景技术
现有研究表明,吲哚稠环类化合物在活性天然产物和药物分子中被大量发现,并且发挥着重要的药理作用。鉴于这类化合物具有重要的应用价值,因而如何构筑这类具有吲哚稠环结构的化合物成为摆在诸多化学家面前的值得关注的问题。参考现有报道可知,传统构筑这类化合物的合成方法往往涉及多步的官能团转化反应,且传统方法无法克服需要多个反应步骤、需要多次分离纯化、总产率较低的缺点。
近年来,利用导向基团辅助和过渡金属催化的C–H活化反应得到了快速发展,与传统合成方法相比,过渡金属催化的C–H活化反应具有以下优势:不需要对底物进行预官能团化,可以一步快速实现对惰性C–H键的直接官能团化,因而具有起始原料简单易得、合成步骤少、合成效率高等优点。在这一背景下,吲哚类底物和各种试剂之间的C–H环化反应成为了快速高效地构建吲哚稠环类化合物的一个有力手段。
特别地,在众多的吲哚稠环类化合物中,具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物在药理活性分子中广泛体现,并且具有此骨架结构的化合物表现出潜在的药理应用价值。具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的代表性活性化合物结构式如下:
然而,目前报道的吲哚类底物和各种试剂之间的C–H环化反应构建1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的方法大多存在一些明显的缺点,如需要使用危险的重氮化合物或恶臭的异腈为反应试剂、需要使用外源的金属或非金属氧化剂、底物适用范围较窄、产率较低、反应条件较苛刻等。因此,开发一种反应试剂友好且易得、不需要外源的氧化剂、底物适用范围广、产率优良、反应条件温和的合成1H-咪唑并[1,5-a]吲哚-3(2H)-酮类化合物的方法成为本发明亟待解决的技术问题。
发明内容
本发明的目的就是为了解决上述技术问题,从而提供一种制备咪唑并[1,5-a]吲哚-3-酮化合物的方法,并获得了一系列的具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物,在药理活性分子的研究中具有潜在的应用价值。
本发明的目的之一是提供一种具有式(Ⅴ)所示结构的咪唑并[1,5-a]吲哚-3-酮化合物的制备方法,所述方法包括步骤P1:
P1:采用铑催化吲哚Ⅰ与缺电子炔烃Ⅳ之间的[4+1]环加成反应制备化合物Ⅴ,其中,催化剂为[Cp*RhCl2]2,添加剂为特戊酸钠水合物和冰醋酸,溶剂为1,2-二氯乙烷;
步骤P1涉及的反应方程式如下:
其中,R1代表苯环上任意位置的取代基,其选自以下基团:氢、卤素、烷基、烷氧基、氰基、酯基、3-6元含一个N、O或S原子的杂环;
R2选自以下基团:氢、取代或未取代的烷基;
R3选自以下基团:取代或未取代的烷基;
R4选自以下基团:氢、烷基;
EWG选自以下基团:酯基、酮基、酰胺基;
所述的取代指基团上的一个或多个氢原子被选自下组的取代基取代:甲基、苯基、氰基、酯基。
本发明开发出了一类铑催化的吲哚和缺电子炔烃之间的[4+1]环加成反应,成功制备了一系列具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物。该合成方法的最大特点是使用缺电子炔烃作为一碳合成子参与铑催化的[4+1]环加成反应。该反应具有底物适用范围广、化学选择性和区域选择性高、产率良好、官能团耐受性好、反应步骤经济、温和的中性反应条件等优点。该反应可以放大到克级规模,进一步证明这类反应的实用性。此外,本发明提供的上述合成方法还可以应用到对天然产物如褪黑素的结构修饰中,具有广阔的应用前景。
进一步的是,所述的卤素包括F、Cl、Br或I。
进一步的是,所述的烷基包括甲基或乙基,所述的烷氧基包括甲氧基或乙氧基;所述取代的烷基包括异丙基、苄基、CH2CO2Et或CH2CN。
进一步的是,所述步骤P1的反应温度为60℃,反应时间为24h。
进一步的是,所述化合物Ⅰ和化合物Ⅳ的摩尔比为1:1.2。
进一步的是,所述催化剂的用量为化合物Ⅰ摩尔量的1%-10%,优选5%(实施例中以催化剂用量为化合物Ⅰ摩尔量的5%为例)。
进一步的是,所述特戊酸钠水合物添加剂与吲哚的摩尔比为2:1,所述冰醋酸添加剂与吲哚的摩尔比为2:1。
本发明的目的之二是提供由上述方法制备得到的如式(Ⅴ)所示的1H-咪唑并[1,5-a]吲哚-3(2H)-酮类化合物。并且本发明的实施例中提供了一系列已被成功合成的化合物Ⅴ,并对这一系列化合物进行了表征。
本发明的有益效果如下:
本发明开发出了一类铑催化的吲哚和缺电子炔烃之间的[4+1]环加成反应,成功制备了一系列具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物。该合成方法具有底物适用范围广、化学选择性和区域选择性高、产率良好、官能团耐受性好、反应步骤经济、温和的中性反应条件等优点,且可以放大到克级规模,具有较好的实用性。此外,本发明提供的上述合成方法还可以应用到对天然产物如褪黑素的结构修饰中,具有广阔的应用前景。
具体实施方式
以下结合实施例对本发明进行具体描述,下述实施例仅仅用于对本发明进行解释和说明,并不用于限定本发明。本领域技术人员根据上述发明内容所做出的一些非本质的改进和调整,仍属于本发明的保护范围。
实施例1
反应条件的优化:按照表1中涉及的反应式,以吲哚1aa和丙炔酸乙酯2aa为模板底物进行反应条件的优化,结果如表1所示。
首先,以NaOAc为添加剂,在一系列金属催化剂的催化下,1aa和2aa在DCE(1,2-二氯乙烷)中于60℃反应24h。结果表明,以催化剂CoCp2*PF6、[RuCl2(p-cym)]2、Pd(OAc)2和[Cp*IrCl2]2(序号1-4)进行反应时,只观察到极少量的氮杂共轭加成产物3aa'或3aa",没有观察到目标[4+1]环加成产物3aa。而当使用[Cp*RhCl2]2作为催化剂时,能以44%的产率获得目标[4+1]环加成产物3aa(序号5)。
然后,以[Cp*RhCl2]2为催化剂,NaOAc为添加剂,对不同溶剂进行了筛选,发现增加溶剂的极性对3aa的生成反而不利,DCE仍然是最佳溶剂(序号6-13)。
接下来,以DCE为反应溶剂对添加剂进行了考察,结果显示,碱性比NaOAc强的添加剂如KOAc、CsOAc和Na2CO3均能促进氮杂共轭加成产物3aa'或3aa"的形成而对目标[4+1]环加成产物3aa的生成不利(序号14-16)。让人高兴的是,NaOPiv·H2O被发现是一种比NaOAc更好的添加剂,使用NaOPiv·H2O为添加剂时,目标[4+1]环加成产物3aa的产率可以达到56%,而且没有生成氮杂共轭加成产物3aa'和3aa"(序号17)。
随后,为了进一步提高反应收率,且鉴于酸添加剂在某些情况下可以促进Rh(III)催化C–H活化,因此,一个额外的酸添加剂被加入到反应体系中以期望进一步提高目标[4+1]环加成产物3aa的产率(序号18-20)。结果表明,苯甲酸、特戊酸和冰醋酸均能显著提高3aa的产率,其中以冰醋酸为最佳,当以冰醋酸为酸添加剂,目标产物3aa的产率可以达到83%。
最后,对照实验表明,催化剂[Cp*RhCl2]2和添加剂NaOPiv·H2O对[4+1]环加成反应(序号21和22)均是必不可少的。
通过以上条件优化,确定了[Cp*RhCl2]2/NaOPiv·H2O/HOAc组成的催化体系,该催化体系为实现目标[4+1]环加成反应的关键。值得注意的是,在优化反应条件时未检测到[3+2]或[4+2]环加成产物,这说明该反应具有良好的化学选择性。
表1.反应条件优化a
a反应条件:1aa(0.25mmol),2aa(0.3mmol),催化剂(5mol%),添加剂I(0.5mmol),添加剂II(0.5mmol),溶剂(4.0mL),反应温度60℃,反应时间24h。DCE为1,2-二氯乙烷,Toluene为甲苯,DCM为二氯甲烷,THF为四氢呋喃,Acetone为丙酮,CH3CN为乙腈,1,4-dioxane为1,4-二氧六环,EtOH为乙醇,DMF为N,N-二甲基甲酰胺,trace表示痕量;b指分离产率。
上述条件优化过程中涉及的氮杂共轭加成产物3aa'和3aa”的分析鉴定数据如下:
(Z)-乙基3-(1H-吲哚-1-碳杂草酰氨基<乙二酰氨基>)丙烯酰酸酯
(Z)-ethyl 3-(1H-indole-1-carboxamido)acrylate
反应混合物在硅胶上直接进行快速色谱(石油/乙酸乙酯:50/1→石油/乙酸乙酯:20/1),得到的产品为无色粘稠油状物。
1H NMR(600MHz,CDCl3)δ11.29(d,J=10.1Hz,1H),8.35(d,J=8.3Hz,1H),7.66(dd,J=10.4,8.8Hz,1H),7.60(d,J=7.8Hz,1H),7.52(d,J=3.7Hz,1H),7.41-7.35(m,1H),7.30-7.26(m,1H),6.71(d,J=3.6Hz,1H),5.29(d,J=8.7Hz,1H),4.25(q,J=7.1Hz,2H),1.34(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.93,148.65,139.55,135.63,130.48,125.14,123.41,123.29,121.36,115.27,109.46,97.00,60.61,14.39;HRMS(ESI)m/z:[M-H]-Calcd for C14H13N2O3257.0932;Found 257.0931.
(E)-乙基3-(N-甲氧基-1H-吲哚-1-碳杂草酰氨基<乙二酰氨基>)丙烯酰酸酯
(E)-ethyl 3-(N-methoxy-1H-indole-1-carboxamido)acrylate
反应混合物在硅胶上直接进行快速色谱(石油/乙酸乙酯:12/1→石油/乙酸乙酯:10/1),得到的产品为黄色粘稠油状物。
1H NMR(600MHz,CDCl3)δ8.23(d,J=13.7Hz,1H),8.07(d,J=8.3Hz,1H),7.74(d,J=3.7Hz,1H),7.60(d,J=7.8Hz,1H),7.37-7.33(m,1H),7.30-7.27(m,1H),6.67(d,J=3.7Hz,1H),5.70(d,J=13.8Hz,1H),4.24(q,J=7.1Hz,2H),3.71(s,3H),1.32(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ166.92,148.38,137.25,136.62,129.90,126.16,124.81,123.75,121.13,115.40,109.02,99.94,62.71,60.52,14.48;HRMS(ESI)m/z:[M+H]+Calcd for C15H17N2O4289.1183;Found 289.1177.
实施例2
按照下列反应式制备具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物3。
其中反应条件如下:吲哚底物1(0.25mmol),烯烃底物2aa(0.3mmol),催化剂[Cp*RhCl2]2(5mol%),添加剂NaOPiv·H2O(0.5mmol)、HOAc(0.5mmol),溶剂1,2-二氯乙烷(4.0mL),反应温度60℃,反应时间24h。
在上述最佳反应条件下,对上述反应式中的R1、R2、R3基团进行不同取代,考查上述反应式对吲哚底物1的适用范围,获得一系列的化合物3aa~3bg,并统计其产率。考查结果如下表2:
表2.吲哚底物适用范围a,b
a反应条件:1(0.25mmol),2aa(0.3mmol),[Cp*RhCl2]2(5mol%),NaOPiv·H2O(0.5mmol),HOAc(0.5mmol),DCE(4.0mL),60℃,24h;b指分离产率。
上述结果表明,本发明提供的铑催化吲哚与缺电子炔烃之间的[4+1]环加成反应具有吲哚底物适用范围广、化学选择性和区域选择性高、产率良好、官能团耐受性好、反应步骤经济、温和的中性反应条件等优点,可以高效地合成一系列具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物3。
实施例3
按照下列反应式制备具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物4。
其中反应条件如下:吲哚底物1aa(0.25mmol),缺电子炔烃底物2(0.3mmol),催化剂[Cp*RhCl2]2(5mol%),添加剂NaOPiv·H2O(0.5mmol)、HOAc(0.5mmol),溶剂1,2-二氯乙烷(4.0mL),反应温度60℃,反应时间24h。
对上述反应式中的R4和EWG基团进行不同取代,考查上述反应式对缺电子炔烃底物2的适用范围,获得一系列的化合物4aa~4av,并统计其产率。考查结果如下表3,表3中各化合物代号后的产率均为分离产率:
表3.炔烃底物适用范围a,b
a反应条件:1aa(0.25mmol),2(0.3mmol),[Cp*RhCl2]2(5mol%),NaOPiv·H2O(0.5mmol),HOAc(0.5mmol),DCE(4.0mL),60℃,24h;b指分离产率。
上述结果表明,本发明提供的铑催化吲哚与缺电子炔烃之间的[4+1]环加成反应具有缺电子炔烃底物适用范围广、化学选择性和区域选择性高、产率良好、官能团耐受性好、反应步骤经济、温和的中性反应条件等优点,可以高效地合成一系列具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物4。
实施例4
克级放大反应实验:按照如下的反应条件进行克级放大反应,以1aa(6mmol)和2aa(7.2mmol)进行反应时,能以81%的产率得到目标产物3aa。克级放大反应实验结果证明:该反应可以放大到克级规模,进一步证明这类反应的实用性。此外,该反应还可以应用到对天然产物如Melatonin(褪黑素)的结构修饰中,能以90%的产率得到褪黑素衍生物5aa。
实施例5:对上述实施例1、2、3、4中制备的系列化合物3、4、5的具体表征:
按照实施例1的最佳反应条件,向25mL舒伦克试管中依次加入吲哚底物1(0.25mmol)、[Cp*RhCl2]2(5mol%)、NaOPiv·H2O(0.5mmol),再向其中加入含有HOAc(0.5mmol)的DCE(2.0mL)溶液和含有炔烃2(0.3mmol)的DCE(2.0mL)溶液。然后用塞子盖住试管,将得到的混合物在60℃油浴中搅拌24小时。去除溶剂后所得残余物在硅胶上用快速色谱法纯化,得到相应的目标产物,成功制备出一系列具有1H-咪唑并[1,5-a]吲哚-3(2H)-酮骨架的化合物(化合物一至化合物五十六),并采用氢谱+碳谱+高分辨质谱对所得化合物进行了表征:
乙基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠的油状产物(59.7mg,产率83%)。
1H NMR(600MHz,CDCl3)δ7.96(dd,J=8.1,0.7Hz,1H),7.57(d,J=7.9Hz,1H),7.34-7.29(m,1H),7.27-7.24(m,1H),6.42-6.37(m,1H),5.26-5.18(m,1H),4.28-4.20(m,2H),3.96(s,3H),3.08(dd,J=16.3,5.8Hz,1H),2.81(dd,J=16.3,7.6Hz,1H),1.29(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.88,152.58,135.24,132.84,130.95,124.07,123.44,121.41,113.02,99.99,65.06,61.34,55.43,37.73,14.29;HRMS(ESI)m/z:[M+H]+Calcd for C15H17N2O4289.1183;Found 289.1180.
乙基2-(8-氟-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(8-fluoro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(65.6mg,产率86%),mp(熔点)52-53℃。
1H NMR(600MHz,CDCl3)δ7.74(d,J=8.1Hz,1H),7.26-7.22(m,1H),6.94(dd,J=10.1,8.1Hz,1H),6.54-6.46(m,1H),5.26-5.19(m,1H),4.30-4.19(m,2H),3.96(s,3H),3.09(dd,J=16.4,5.7Hz,1H),2.81(dd,J=16.4,7.7Hz,1H),1.29(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ169.69,155.94(d,JC-F=248.7Hz),152.14,135.20,132.96(d,JC-F=10.1Hz),124.98(d,JC-F=7.3Hz),121.48(d,JC-F=21.8Hz),109.08(d,JC-F=3.9Hz),108.75(d,JC-F=18.8Hz),95.97,65.11,61.44,55.25,37.50,14.28;HRMS(ESI)m/z:[M+H]+Calcd for C15H16FN2O4307.1089;Found307.1083.
乙基2-(8-氯-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(8-chloro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠的油状产物(61.6mg,产率76%)。
1H NMR(600MHz,CDCl3)δ7.86(dd,J=7.4,0.7Hz,1H),7.26-7.22(m,2H),6.53(d,J=0.7Hz,1H),5.26-5.21(m,1H),4.29-4.20(m,2H),3.96(s,3H),3.09(dd,J=16.5,5.7Hz,1H),2.82(dd,J=16.5,7.6Hz,1H),1.29(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.68,152.08,135.78,131.56,131.49,126.40,124.84,123.25,111.50,98.48,65.13,61.46,55.32,37.46,14.29;HRMS(ESI)m/z:[M+H]+Calcd for C15H16ClN2O4323.0793;Found323.0792.
乙基2-(8-溴-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(8-bromo-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠的油状产物(80.4mg,产率88%)。
1H NMR(600MHz,CDCl3)δ7.89(d,J=8.1Hz,1H),7.43-7.38(m,1H),7.19-7.13(m,1H),6.47(d,J=0.9Hz,1H),5.27-5.18(m,1H),4.29-4.16(m,2H),3.96(s,3H),3.08(dd,J=16.5,5.7Hz,1H),2.82(dd,J=16.5,7.6Hz,1H),1.29(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.64,152.04,135.75,133.33,131.14,126.29,125.03,114.75,111.96,100.12,65.10,61.43,55.29,37.39,14.27;HRMS(ESI)m/z:[M+H]+Calcd forC15H16BrN2O4367.0288;Found 367.0287.
乙基2-(7-氟-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(7-fluoro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(58.9mg,产率77%),mp 56-57℃。
1H NMR(600MHz,CDCl3)δ7.87(dd,J=8.8,4.5Hz,1H),7.20(dd,J=9.1,2.4Hz,1H),7.07-7.00(m,1H),6.36(s,1H),5.23-5.15(m,1H),4.27-4.17(m,2H),3.95(s,3H),3.08(dd,J=16.4,5.7Hz,1H),2.80(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ169.73,159.62(d,JC-F=239.5Hz),152.25,136.95,133.67(d,JC-F=10.3Hz),127.32,113.70(d,JC-F=9.6Hz),112.11(d,JC-F=25.9Hz),107.00(d,JC-F=24.3Hz),99.91(d,JC-F=4.1Hz),65.10,61.37,55.35,37.47,14.26;HRMS(ESI)m/z:[M+H]+Calcd for C15H16FN2O4307.1089;Found307.1084.
乙基2-(7-氯-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(7-chloro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(75.3mg,产率93%)。
1H NMR(600MHz,CDCl3)δ7.87(d,J=8.6Hz,1H),7.57-7.49(m,1H),7.28-7.26(m,1H),6.35(s,1H),5.25-5.14(m,1H),4.29-4.16(m,2H),3.96(s,3H),3.09(dd,J=16.4,5.7Hz,1H),2.80(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.73,152.11,136.60,133.92,129.25,129.05,124.37,121.07,113.83,99.51,65.13,61.42,55.29,37.45,14.28;HRMS(ESI)m/z:[M+H]+Calcd for C15H16ClN2O4323.0793;Found323.0789.
乙基2-(7-溴-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(7-bromo-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(76.5mg,产率83%)。
1H NMR(600MHz,CDCl3)δ7.80(d,J=8.6Hz,1H),7.68(s,1H),7.39(dd,J=8.6,1.4Hz,1H),6.33(s,1H),5.23-5.16(m,1H),4.28-4.16(m,2H),3.95(s,3H),3.07(dd,J=16.4,5.7Hz,1H),2.80(dd,J=16.5,7.7Hz,1H),1.27(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.66,152.02,136.41,134.38,129.52,126.93,124.08,116.64,114.17,99.33,65.10,61.39,55.24,37.41,14.27;HRMS(ESI)m/z:[M+H]+Calcd forC15H16BrN2O4367.0288;Found 367.0284.
乙基2-(7-碘-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(7-iodo-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(82.6mg,产率80%),mp 97-98℃。
1H NMR(600MHz,CDCl3)δ7.92(d,J=1.3Hz,1H),7.73(d,J=8.5Hz,1H),7.59(dd,J=8.5,1.5Hz,1H),6.33(s,1H),5.26-5.18(m,1H),4.28-4.15(m,2H),3.96(s,3H),3.08(dd,J=16.4,5.7Hz,1H),2.80(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.70,152.07,136.06,135.01,132.59,130.32,130.09,114.68,99.08,87.37,65.14,61.44,55.24,37.50,14.31;HRMS(ESI)m/z:[M+H]+Calcd forC15H16IN2O4415.0149;Found 415.0150.
乙基2-(6-氟-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(6-fluoro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物在硅胶上直接进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(56.9mg,产率74%),mp 68-69℃。
1H NMR(600MHz,CDCl3)δ7.64(dd,J=8.8,2.1Hz,1H),7.47(dd,J=8.7,5.0Hz,1H),7.03-6.96(m,1H),6.37(s,1H),5.23-5.16(m,1H),4.28-4.17(m,2H),3.95(s,3H),3.07(dd,J=16.4,5.7Hz,1H),2.79(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ169.76,160.46(d,JC-F=241.9Hz),152.07,135.44(d,JC-F=3.9Hz),130.81(d,JC-F=13.1Hz),129.00,122.11(d,JC-F=9.8Hz),111.85(d,JC-F=24.3Hz),100.13(d,JC-F=27.5Hz),99.79,65.06,61.35,55.30,37.56,14.27;HRMS(ESI)m/z:[M+H]+Calcd for C15H16FN2O4307.1089;Found307.1087.
乙基2-(6-氯-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(6-chloro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(78.9mg,产率98%),mp 86-87℃。
1H NMR(600MHz,CDCl3)δ7.96(s,1H),7.46(d,J=8.4Hz,1H),7.21(dd,J=8.4,1.6Hz,1H),6.38(s,1H),5.26-5.15(m,1H),4.34-4.13(m,2H),3.95(s,3H),3.08(dd,J=16.4,5.7Hz,1H),2.80(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.73,151.97,135.72,131.23,131.14,129.99,124.08,122.16,113.16,99.87,65.12,61.41,55.30,37.49,14.29;HRMS(ESI)m/z:[M+H]+Calcd forC15H16ClN2O4323.0793;Found 323.0792.
乙基2-(6-溴-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(6-bromo-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(70.0mg,产率76%),mp 80-81℃。
1H NMR(600MHz,CDCl3)δ8.09(d,J=1.4Hz,1H),7.40(d,J=8.4Hz,1H),7.33(dd,J=8.4,1.7Hz,1H),6.36(s,1H),5.23-5.14(m,1H),4.31-4.16(m,2H),3.94(s,3H),3.07(dd,J=16.4,5.7Hz,1H),2.79(dd,J=16.4,7.7Hz,1H),1.27(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.67,151.88,135.61,131.55,131.41,126.65,122.49,117.44,115.98,99.87,65.08,61.37,55.25,37.39,14.27;HRMS(ESI)m/z:[M+H]+Calcd forC15H16BrN2O4367.0288;Found 367.0287.
乙基2-(5-氟-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(5-fluoro-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(61.9mg,产率81%)。
1H NMR(600MHz,CDCl3)δ7.31(d,J=7.9Hz,1H),7.20-7.12(m,1H),7.02(dd,J=10.8,8.1Hz,1H),6.44(s,1H),5.24-5.14(m,1H),4.28-4.16(m,2H),3.95(s,3H),3.08(dd,J=16.4,5.6Hz,1H),2.80(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.73,151.34,150.17(d,JC-F=252.0Hz),136.62,136.25(d,JC-F=4.6Hz),124.14(d,JC-F=6.2Hz),118.75(d,JC-F=13.9Hz),117.03(d,JC-F=3.7Hz),110.52(d,JC-F=17.7Hz),100.47,64.94,61.35,55.06,37.55,14.24;HRMS(ESI)m/z:[M+H]+Calcdfor C15H16FN2O4307.1089;Found 307.1086.
乙基2-(2-甲氧基-8-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-8-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(47.7mg,产率63%)。
1H NMR(600MHz,CDCl3)δ7.80(d,J=8.1Hz,1H),7.24-7.19(m,1H),7.06(d,J=7.3Hz,1H),6.45-6.39(m,1H),5.26-5.18(m,1H),4.30-4.19(m,2H),3.96(s,3H),3.08(dd,J=16.3,5.8Hz,1H),2.80(dd,J=16.3,7.7Hz,1H),2.51(s,3H),1.30(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ169.98,152.72,134.69,132.55,130.94,130.69,124.15,123.82,110.53,98.55,65.06,61.33,55.49,37.79,18.77,14.30;HRMS(ESI)m/z:[M+H]+Calcd forC16H19N2O4303.1339;Found 303.1334.
乙基2-(2,8-二甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2,8-dimethoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状产物(53.5mg,产率67%)。
1H NMR(600MHz,CDCl3)δ7.56(d,J=8.1Hz,1H),7.25-7.20(m,1H),6.68(d,J=8.0Hz,1H),6.53-6.48(m,1H),5.24-5.17(m,1H),4.29-4.17(m,2H),3.94(s,3H),3.92(s,3H),3.04(dd,J=16.3,5.9Hz,1H),2.78(dd,J=16.3,7.5Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.80,153.20,152.56,133.56,132.03,125.09,122.91,106.03,103.65,97.19,64.98,61.28,55.50,55.34,37.77,14.26;HRMS(ESI)m/z:[M+H]+Calcd forC16H19N2O5319.1288;Found 319.1288.
乙基2-(2-甲氧基-7-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-7-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(61.1mg,产率81%)。
1H NMR(600MHz,CDCl3)δ7.83(d,J=8.3Hz,1H),7.34(s,1H),7.13(d,J=8.2Hz,1H),6.31(s,1H),5.25-5.13(m,1H),4.29-4.17(m,2H),3.95(s,3H),3.06(dd,J=16.3,5.9Hz,1H),2.79(dd,J=16.3,7.6Hz,1H),2.44(s,3H),1.29(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.91,152.69,135.32,133.13,133.03,129.11,125.45,121.26,112.57,99.69,65.05,61.31,55.50,37.77,21.68,14.29;HRMS(ESI)m/z:[M+H]+Calcd forC16H19N2O4303.1339;Found 303.1337.
乙基2-(2,7-二甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2,7-dimethoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(72.2mg,产率91%)。
1H NMR(600MHz,CDCl3)δ7.82(d,J=8.8Hz,1H),7.01(d,J=2.2Hz,1H),6.92(dd,J=8.8,2.3Hz,1H),6.32(s,1H),5.21-5.12(m,1H),4.28-4.17(m,2H),3.94(s,3H),3.83(s,3H),3.06(dd,J=16.3,5.9Hz,1H),2.79(dd,J=16.3,7.6Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.87,156.51,152.64,136.07,133.82,125.65,113.57,113.03,104.02,99.88,65.05,61.30,55.81,55.52,37.71,14.28;HRMS(ESI)m/z:[M+H]+Calcd forC16H19N2O5319.1288;Found319.1283.
乙基2-(2-甲氧基-6-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-6-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(64.6mg,产率85%)。
1H NMR(600MHz,CDCl3)δ7.78(d,J=0.5Hz,1H),7.43(d,J=8.1Hz,1H),7.11-7.02(m,1H),6.33(d,J=0.7Hz,1H),5.22-5.13(m,1H),4.28-4.17(m,2H),3.95(s,3H),3.05(dd,J=16.3,5.9Hz,1H),2.79(dd,J=16.3,7.6Hz,1H),2.47(s,3H),1.29(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.89,152.67,134.48,134.24,131.29,130.51,124.98,120.91,113.10,99.83,64.99,61.27,55.44,37.78,21.72,14.27;HRMS(ESI)m/z:[M+H]+Calcd for C16H19N2O4303.1339;Found303.1336.
乙基2-(2,6-二甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2,6-dimethoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状产物(47.0mg,产率59%)。
1H NMR(600MHz,CDCl3)δ7.46(d,J=2.0Hz,1H),7.41(d,J=8.7Hz,1H),6.88(dd,J=8.7,2.3Hz,1H),6.31(s,1H),5.24-5.14(m,1H),4.28-4.18(m,2H),3.95(s,3H),3.87(s,3H),3.05(dd,J=16.3,5.8Hz,1H),2.78(dd,J=16.3,7.6Hz,1H),1.28(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.91,157.61,152.64,133.64,131.77,126.38,121.88,113.33,99.85,96.49,65.01,61.29,55.89,55.41,37.83,14.30;HRMS(ESI)m/z:[M+H]+Calcd forC16H19N2O5319.1288;Found 319.1285.
乙基2-(2-甲氧基-5-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-5-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状产物(55.5mg,产率73%)。
1H NMR(600MHz,CDCl3)δ7.36(d,J=7.8Hz,1H),7.17-7.12(m,1H),7.08(d,J=7.3Hz,1H),6.40(d,J=1.6Hz,1H),5.21-5.14(m,1H),4.30-4.18(m,2H),3.96(s,3H),3.05(dd,J=16.2,5.9Hz,1H),2.89(s,3H),2.80(dd,J=16.2,7.4Hz,1H),1.30(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.93,153.18,136.19,133.54,131.53,126.51,124.89,123.72,118.67,100.43,64.86,61.27,54.89,37.92,20.89,14.27;HRMS(ESI)m/z:[M+Na]+Calcd for C16H18N2NaO4325.1159;Found 325.1158.
1-(2-乙氧基-2-羰基乙基)-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-7-羧酸酯
1-(2-ethoxy-2-oxoethyl)-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indole-7-carboxylate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色无定形固体(79.9mg,产率92%),mp 104-105℃。
1H NMR(600MHz,CDCl3)δ8.31(d,J=0.8Hz,1H),8.06-7.95(m,2H),6.48(d,J=1.0Hz,1H),5.29-5.19(m,1H),4.29-4.18(m,2H),3.96(s,3H),3.93(s,3H),3.10(dd,J=16.4,5.7Hz,1H),2.82(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.69,167.46,151.85,136.34,133.44,132.51,125.42,125.41,123.89,112.61,100.61,65.10,61.43,55.21,52.25,37.45,14.28;HRMS(ESI)m/z:[M+H]+Calcd forC17H19N2O6347.1238;Found 347.1231.
乙基2-(7-氰基-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(7-cyano-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(71.7mg,产率92%),mp 80-81℃.
1H NMR(600MHz,CDCl3)δ8.01(d,J=8.4Hz,1H),7.89(s,1H),7.54(dd,J=8.4,1.3Hz,1H),6.48(s,1H),5.29-5.18(m,1H),4.27-4.15(m,2H),3.96(s,3H),3.11(dd,J=16.6,5.4Hz,1H),2.82(dd,J=16.6,7.8Hz,1H),1.26(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.46,151.26,137.29,132.53,132.51,127.04,126.40,119.62,113.67,106.70,99.91,65.12,61.46,55.01,37.06,14.22;HRMS(ESI)m/z:[M+H]+Calcd forC16H16N3O4314.1135;Found 314.1131.
乙基2-(2-甲氧基-9-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-9-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状物(69.1mg,产率91%)。
1H NMR(600MHz,CDCl3)δ7.93(d,J=8.0Hz,1H),7.50(d,J=7.8Hz,1H),7.33-7.30(m,1H),7.28-7.25(m,1H),5.35-5.28(m,1H),4.24-4.13(m,2H),3.92(s,3H),2.97-2.84(m,2H),2.24(s,3H),1.24(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ170.09,152.50,133.88,130.83,130.15,124.08,123.01,119.27,112.94,108.81,64.72,61.28,54.87,36.89,14.19,8.42;HRMS(ESI)m/z:[M+Na]+Calcd for C16H18N2NaO4325.1159;Found325.1154.
乙基2-(9-苯甲基-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(9-benzyl-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(89.5mg,产率95%),mp 78-79℃。
1H NMR(600MHz,CDCl3)δ7.98(d,J=8.1Hz,1H),7.45(d,J=7.9Hz,1H),7.35-7.28(m,3H),7.26-7.21(m,4H),5.13(dd,J=6.9,4.7Hz,1H),4.15-3.99(m,4H),3.89(s,3H),2.65-2.50(m,2H),1.17(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.85,152.30,139.14,133.11,131.14,130.99,128.85,128.62,126.72,124.21,123.17,119.76,113.02,112.23,64.67,61.10,54.76,36.69,30.16,14.11;HRMS(ESI)m/z:[M+Na]+Calcd forC22H22N2NaO4401.1472;Found 401.1468.
乙基2-(9-(氰基甲基)-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl
2-(9-(cyanomethyl)-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色无定形固体(72.9mg,产率89%),mp 102-103℃。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.1Hz,1H),7.56(d,J=7.9Hz,1H),7.40-7.36(m,1H),7.35-7.30(m,1H),5.43-5.35(m,1H),4.24-4.12(m,2H),3.95(s,3H),3.85(q,J=18.3Hz,2H),3.15(dd,J=16.8,5.3Hz,1H),2.90(dd,J=16.8,6.8Hz,1H),1.22(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ170.02,151.68,132.51,131.20,130.82,125.06,123.79,118.82,117.07,113.28,102.32,64.90,61.58,54.31,36.27,14.13,13.13;HRMS(ESI)m/z:[M+H]+Calcd for C17H18N3O4328.1292;Found 328.1290.
二乙基2,2'-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1,9-二基)二乙酸酯
diethyl
2,2'-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indole-1,9-diyl)diacetate将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状物(79.7mg,产率85%)。
1H NMR(600MHz,CDCl3)δ7.95(dd,J=8.0,0.7Hz,1H),7.55(d,J=7.9Hz,1H),7.34-7.30(m,1H),7.29-7.26(m,1H),5.44-5.34(m,1H),4.22-4.07(m,4H),3.93(s,3H),3.77-3.63(m,2H),3.07-2.90(m,2H),1.25(t,J=7.1Hz,3H),1.22(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ170.67,170.15,152.21,132.64,132.30,130.72,124.32,123.29,119.35,113.02,105.88,64.75,61.34,61.23,54.93,36.59,30.06,14.24,14.15;HRMS(ESI)m/z:[M+H]+Calcd for C19H23N2O6375.1551;Found 375.1545.
乙基2-(2-甲氧基-3-羰基-7-(噻吩-2-基)-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl
2-(2-methoxy-3-oxo-7-(thiophen-2-yl)-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色无定形固体(68.9mg,产率74%),mp 112-113℃。
1H NMR(600MHz,CDCl3)δ7.95(d,J=8.5Hz,1H),7.79(d,J=1.4Hz,1H),7.59(dd,J=8.5,1.7Hz,1H),7.31(dd,J=3.6,1.1Hz,1H),7.27(dd,J=5.1,1.1Hz,1H),7.09(dd,J=5.1,3.6Hz,1H),6.42(d,J=0.9Hz,1H),5.27-5.17(m,1H),4.30-4.19(m,2H),3.97(s,3H),3.09(dd,J=16.4,5.8Hz,1H),2.82(dd,J=16.4,7.6Hz,1H),1.30(t,J=7.2Hz,3H);13CNMR(151MHz,CDCl3)δ169.81,152.34,145.01,136.08,133.41,130.33,130.16,128.15,124.62,123.04,122.72,118.76,113.29,100.16,65.11,61.39,55.44,37.66,14.32;HRMS(ESI)m/z:[M+H]+Calcd for C19H19N2O4S 371.1060;Found 371.1056.
乙基2-(7-(呋喃-2-基)-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl
2-(7-(furan-2-yl)-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状物(49.2mg,产率56%)。
1H NMR(600MHz,CDCl3)δ7.94(d,J=8.5Hz,1H),7.87(s,1H),7.64(dd,J=8.5,1.2Hz,1H),7.47(d,J=1.0Hz,1H),6.64(d,J=3.2Hz,1H),6.47(dd,J=3.1,1.7Hz,1H),6.41(s,1H),5.25-5.15(m,1H),4.29-4.16(m,2H),3.96(s,3H),3.08(dd,J=16.4,5.8Hz,1H),2.82(dd,J=16.4,7.6Hz,1H),1.29(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.81,154.44,152.33,141.91,135.92,133.19,130.13,126.70,120.57,116.63,113.15,111.80,104.54,100.25,65.06,61.35,55.41,37.63,14.29;HRMS(ESI)m/z:[M+H]+Calcdfor C19H19N2O5355.1288;Found 355.1285.
乙基2-(2-甲氧基-3-羰基-7-(吡啶-4-基)-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl
2-(2-methoxy-3-oxo-7-(pyridin-4-yl)-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:2/1→石油/乙酸乙酯:1/1),得到黄色粘稠油状物(67.6mg,产率74%)。
1H NMR(600MHz,CDCl3)δ8.64(d,J=5.5Hz,2H),8.03(d,J=8.4Hz,1H),7.82(s,1H),7.58(dd,J=8.4,1.4Hz,1H),7.53(d,J=5.8Hz,2H),6.47(s,1H),5.28-5.18(m,1H),4.26-4.18(m,2H),3.96(s,3H),3.10(dd,J=16.4,5.7Hz,1H),2.82(dd,J=16.4,7.7Hz,1H),1.28(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ169.71,152.14,150.17,148.93,136.32,133.57,133.47,131.23,123.18,121.97,120.07,113.49,100.22,65.10,61.38,55.34,37.51,14.28;HRMS(ESI)m/z:[M+H]+Calcd for C20H20N3O4366.1448;Found366.1447.
乙基2-(2-乙氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2-ethoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(60.0mg,产率79%),mp 86-87℃。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.1Hz,1H),7.57(d,J=7.8Hz,1H),7.34-7.30(m,1H),7.28-7.24(m,1H),6.40(s,1H),5.28-5.16(m,1H),4.32-4.05(m,4H),3.09(dd,J=16.4,5.8Hz,1H),2.78(dd,J=16.4,7.6Hz,1H),1.36(t,J=7.0Hz,3H),1.29(t,J=7.0Hz,3H);13C NMR(151MHz,CDCl3)δ169.99,152.72,135.41,132.79,130.97,124.03,123.38,121.39,113.03,99.89,72.98,61.34,55.61,37.72,14.32,13.92;HRMS(ESI)m/z:[M+H]+Calcd for C16H19N2O4303.1339;Found 303.1335.
乙基2-(2-异丙氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2-isopropoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(63.8mg,产率81%),mp 63-64℃。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.59(d,J=7.8Hz,1H),7.36-7.31(m,1H),7.28(d,J=6.8Hz,1H),6.42(s,1H),5.31-5.19(m,1H),4.46-4.32(m,1H),4.24(q,J=7.1Hz,2H),3.13(dd,J=16.6,5.7Hz,1H),2.75(dd,J=16.6,7.8Hz,1H),1.36(t,J=6.4Hz,6H),1.30(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ170.02,153.04,135.63,132.72,130.91,123.91,123.27,121.32,112.95,99.77,78.91,61.23,55.92,37.53,21.07,21.05,14.27;HRMS(ESI)m/z:[M+H]+Calcd for C17H21N2O4317.1496;Found317.1494.
乙基2-(2-(苄氧基)-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl 2-(2-(benzyloxy)-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状物(66.4mg,产率73%)。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.56(d,J=7.8Hz,1H),7.52-7.46(m,2H),7.44-7.37(m,3H),7.36-7.30(m,1H),7.28-7.25(m,1H),6.35(s,1H),5.13(q,J=10.8Hz,2H),5.03-4.89(m,1H),4.21-4.06(m,2H),2.84(dd,J=16.5,5.3Hz,1H),2.57(dd,J=16.5,8.1Hz,1H),1.22(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.85,152.92,135.49,135.20,132.81,130.88,129.86,129.17,128.73,124.00,123.39,121.37,112.98,99.91,79.32,61.19,55.86,37.15,14.21;HRMS(ESI)m/z:[M+H]+Calcd forC21H21N2O4365.1496;Found 365.1490.
(E)-乙基3-(1-(2-乙氧基-2-羰基乙基)-2-甲氧基-3-羰基-2,3-二氢-1H-吡咯并[1,2-c]咪唑-5-基)丙烯酰酸酯
(E)-ethyl3-(1-(2-ethoxy-2-oxoethyl)-2-methoxy-3-oxo-2,3-dihydro-1H-pyrrolo[1,2-c]imidazol-5-yl)acrylate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状物(42.4mg,产率50%)。
1H NMR(400MHz,CDCl3)δ7.85(d,J=16.1Hz,1H),6.73(d,J=3.6Hz,1H),6.62(d,J=16.1Hz,1H),6.11(dd,J=3.5,1.2Hz,1H),5.14-5.06(m,1H),4.25-4.17(m,4H),3.92(s,3H),3.00(dd,J=16.4,5.7Hz,1H),2.73(dd,J=16.4,7.5Hz,1H),1.30(t,J=7.1Hz,1H),1.27(t,J=7.1Hz,1H);13C NMR(151MHz,CDCl3)δ169.66,167.41,151.69,134.32,130.90,127.16,119.35,117.55,105.69,64.89,61.37,60.48,54.75,37.38,14.44,14.26;HRMS(ESI)m/z:[M+H]+Calcd for C16H21N2O6337.1394;Found 337.1390.
乙基2-(2-甲氧基-5-甲基-3-羰基-2,3-二氢-1H-吡咯并[1,2-c]咪唑-1-基)乙酸酯ethyl
2-(2-methoxy-5-methyl-3-oxo-2,3-dihydro-1H-pyrrolo[1,2-c]imidazol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄色粘稠油状物(40.8mg,产率65%)。
1H NMR(600MHz,CDCl3)δ5.99(dd,J=2.9,1.0Hz,1H),5.88(dd,J=3.0,1.3Hz,1H),5.06-4.98(m,1H),4.24-4.15(m,2H),3.89(s,3H),2.93(dd,J=16.1,6.0Hz,1H),2.68(dd,J=16.1,7.3Hz,1H),2.43(s,3H),1.27(t,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ170.04,152.62,129.27,126.00,113.64,103.53,64.72,61.13,54.66,38.05,14.27,11.41;HRMS(ESI)m/z:[M+H]+Calcd for C12H17N2O4253.1183;Found 253.1179.
甲基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
methyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄棕色无定形固体(49.2mg,产率72%),mp 60-61℃。
1H NMR(600MHz,CDCl3)δ7.96(d,J=8.1Hz,1H),7.56(d,J=7.8Hz,1H),7.35-7.29(m,1H),7.27-7.24(m,1H),6.40(s,1H),5.25-5.18(m,1H),3.96(s,3H),3.78(s,3H),3.09(dd,J=16.4,5.8Hz,1H),2.81(dd,J=16.4,7.7Hz,1H);13C NMR(151MHz,CDCl3)δ170.34,152.55,135.14,132.83,130.94,124.09,123.46,121.42,113.02,100.03,65.06,55.39,52.27,37.47;HRMS(ESI)m/z:[M+H]+Calcd for C14H15N2O4275.1026;Found 275.1025.
叔-丁基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
tert-butyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状物(30.2mg,产率38%)。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.0Hz,1H),7.57(d,J=7.8Hz,1H),7.33-7.30(m,1H),7.26-7.24(m,1H),6.39(s,1H),5.24-5.13(m,1H),3.96(s,3H),2.98(dd,J=16.2,6.1Hz,1H),2.75(dd,J=16.2,7.3Hz,1H),1.48(s,9H);13C NMR(151MHz,CDCl3)δ169.11,152.58,135.44,132.84,130.91,123.98,123.39,121.37,113.00,99.76,82.01,65.07,55.58,38.92,28.13;HRMS(ESI)m/z:[M+H]+Calcd for C17H21N2O4317.1496;Found317.1491.
苯甲基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
benzyl2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状物(57.0mg,产率65%)。
1H NMR(600MHz,CDCl3)δ7.96(dd,J=8.1,0.9Hz,1H),7.54(d,J=7.8Hz,1H),7.41-7.34(m,5H),7.34-7.30(m,1H),7.28-7.25(m,1H),6.32-6.27(m,1H),5.28-5.17(m,3H),3.89(s,3H),3.13(dd,J=16.3,6.0Hz,1H),2.86(dd,J=16.3,7.5Hz,1H);13C NMR(151MHz,CDCl3)δ169.70,152.54,135.36,135.00,132.81,130.90,128.76,128.68,128.68,124.07,123.43,121.41,113.02,100.03,67.13,65.04,55.43,37.75;HRMS(ESI)m/z:[M+H]+Calcd for C20H19N2O4351.1339;Found351.1335.
苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
phenyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(77.4mg,产率92%),mp 130-131℃。
1H NMR(600MHz,CDCl3)δ8.00(d,J=8.1Hz,1H),7.59(d,J=7.8Hz,1H),7.44-7.40(m,2H),7.36-7.32(m,1H),7.30-7.26(m,2H),7.16-7.07(m,2H),6.48(d,J=0.8Hz,1H),5.38-5.30(m,1H),4.01(s,3H),3.32(dd,J=16.5,6.3Hz,1H),3.08(dd,J=16.5,7.2Hz,1H);13C NMR(151MHz,CDCl3)δ168.54,152.47,150.37,134.79,132.80,130.96,129.71,126.37,124.19,123.52,121.47,121.43,113.03,100.21,65.11,55.29,37.87;HRMS(ESI)m/z:[M+H]+Calcd for C19H17N2O4337.1183;Found 337.1180.
2-甲氧苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯2-methoxyphenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:8/1→石油/乙酸乙酯:6/1),得到黄色粘稠油状物(77.1mg,产率84%)。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.58(d,J=7.8Hz,1H),7.36-7.31(m,1H),7.29-7.23(m,2H),7.06(dd,J=7.8,1.5Hz,1H),7.02-6.96(m,2H),6.52(d,J=0.7Hz,1H),5.36-5.28(m,1H),4.02(s,3H),3.83(s,3H),3.40(dd,J=16.4,5.5Hz,1H),3.08(dd,J=16.4,8.0Hz,1H);13C NMR(151MHz,CDCl3)δ168.02,152.61,151.05,139.42,135.02,132.94,131.01,127.45,124.12,123.48,122.71,121.45,120.98,113.08,112.60,100.41,65.22,55.86,55.51,37.44;HRMS(ESI)m/z:[M+H]+Calcd for C20H19N2O5367.1288;Found 367.1285.
3-氯苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
3-chlorophenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色无定形固体(78.9mg,产率85%),mp 122-123℃。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.59(d,J=7.9Hz,1H),7.36-7.31(m,2H),7.29-7.25(m,2H),7.17-7.12(m,1H),7.02(ddd,J=8.1,2.2,0.8Hz,1H),6.47(d,J=0.8Hz,1H),5.36-5.29(m,1H),4.00(s,3H),3.30(dd,J=16.5,6.3Hz,1H),3.09(dd,J=16.6,7.1Hz,1H);13C NMR(151MHz,CDCl3)δ168.18,152.45,150.79,135.00,134.61,132.78,131.00,130.46,126.70,124.30,123.60,122.17,121.52,119.86,113.08,100.27,65.13,55.18,37.82;HRMS(ESI)m/z:[M+H]+Calcd for C19H16ClN2O4371.0793;Found371.0783.
m-苯甲基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
m-tolyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(76.6mg,产率87%)。
1H NMR(600MHz,CDCl3)δ8.00(d,J=8.1Hz,1H),7.59(d,J=7.8Hz,1H),7.37-7.32(m,1H),7.31-7.26(m,2H),7.09(d,J=7.6Hz,1H),6.96-6.89(m,2H),6.48(d,J=0.8Hz,1H),5.38-5.28(m,1H),4.01(s,3H),3.30(dd,J=16.5,6.2Hz,1H),3.07(dd,J=16.5,7.2Hz,1H),2.38(s,3H);13C NMR(151MHz,CDCl3)δ168.56,152.42,150.28,139.91,134.78,132.77,130.92,129.36,127.11,124.12,123.46,121.94,121.43,118.32,112.97,100.17,65.06,55.26,37.79,21.38;HRMS(ESI)m/z:[M+H]+Calcd for C20H19N2O4351.1339;Found351.1331.
p-苯甲基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
p-tolyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色无定形固体(78.4mg,产率89%),mp 102-103℃。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.0Hz,1H),7.58(d,J=7.8Hz,1H),7.36-7.30(m,1H),7.29-7.26(m,1H),7.13-7.03(m,4H),6.46(d,J=0.8Hz,1H),5.36-5.29(m,1H),3.99(s,3H),3.30(dd,J=16.5,6.3Hz,1H),3.08(dd,J=16.5,7.1Hz,1H);13C NMR(151MHz,CDCl3)δ168.57,160.52(d,JC-F=245.0Hz),152.44,146.17(d,JC-F=2.8Hz),134.68,132.77,130.97,124.25,123.56,122.87(d,JC-F=8.6Hz),121.48,116.39(d,JC-F=23.6Hz),113.05,100.20,65.10,55.21,37.77;HRMS(ESI)m/z:[M+H]+Calcd forC19H16FN2O4355.1089;Found 355.1085.
4-氯苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
4-chlorophenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(90.9mg,产率98%)。
1H NMR(600MHz,CDCl3)δ7.98(d,J=8.1Hz,1H),7.58(d,J=7.8Hz,1H),7.38-7.31(m,3H),7.29-7.26(m,1H),7.08-7.01(m,2H),6.45(s,1H),5.35-5.28(m,1H),3.99(s,3H),3.29(dd,J=16.5,6.3Hz,1H),3.08(dd,J=16.5,7.0Hz,1H);13C NMR(151MHz,CDCl3)δ168.28,152.38,148.76,134.59,132.72,131.71,130.91,129.71,124.21,123.52,122.78,121.45,112.98,100.17,65.05,55.13,37.73;HRMS(ESI)m/z:[M+H]+Calcd forC19H16ClN2O4371.0793;Found 371.0784.
4-溴苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
4-bromophenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(79.2mg,产率76%)。
1H NMR(600MHz,CDCl3)δ7.98(d,J=8.1Hz,1H),7.58(d,J=7.8Hz,1H),7.51(d,J=8.7Hz,2H),7.37-7.31(m,1H),7.29-7.26(m,1H),7.00(d,J=8.7Hz,2H),6.45(s,1H),5.35-5.29(m,1H),3.99(s,3H),3.29(dd,J=16.5,6.3Hz,1H),3.08(dd,J=16.5,7.0Hz,1H);13C NMR(151MHz,CDCl3)δ168.25,152.41,149.31,134.58,132.74,130.92,124.25,123.57,123.22,121.47,119.49,113.03,100.22,65.10,55.14,37.78;HRMS(ESI)m/z:[M+H]+Calcd for C19H16BrN2O4415.0288;Found 415.0277.
4-碘苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯4-iodophenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到红褐色粘稠油状物(109.7mg,产率95%)。
1H NMR(600MHz,CDCl3)δ7.98(d,J=8.1Hz,1H),7.74-7.68(m,2H),7.58(d,J=7.8Hz,1H),7.36-7.31(m,1H),7.29-7.26(m,1H),6.91-6.83(m,2H),6.45(d,J=0.8Hz,1H),5.35-5.28(m,1H),3.99(s,3H),3.29(dd,J=16.5,6.3Hz,1H),3.07(dd,J=16.5,7.0Hz,1H);13C NMR(151MHz,CDCl3)δ168.19,152.41,150.17,138.75,134.59,132.74,130.95,124.27,123.59,123.58,121.48,113.05,100.23,90.47,65.10,55.16,37.83;HRMS(ESI)m/z:[M+H]+Calcd for C19H16IN2O4463.0149;Found 463.0147.
p-苯甲基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
p-tolyl 2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到黄色粘稠油状物(76.2mg,产率87%)。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.59(d,J=7.8Hz,1H),7.36-7.32(m,1H),7.30-7.26(m,1H),7.21(d,J=8.3Hz,2H),7.00(d,J=8.4Hz,2H),6.47(s,1H),5.37-5.30(m,1H),4.00(s,3H),3.31(dd,J=16.4,6.3Hz,1H),3.07(dd,J=16.4,7.3Hz,1H),2.37(s,3H);13C NMR(151MHz,CDCl3)δ168.74,152.48,148.15,136.09,134.84,132.81,130.98,130.20,124.18,123.51,121.47,121.09,113.05,100.22,65.12,55.34,37.90,20.99;HRMS(ESI)m/z:[M+H]+Calcd for C20H19N2O4351.1339;Found 351.1334.
4-甲氧苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
4-methoxyphenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(74.0mg,产率81%)。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.1Hz,1H),7.58(d,J=7.8Hz,1H),7.37-7.31(m,1H),7.29-7.26(m,1H),7.06-7.00(m,2H),6.94-6.88(m,2H),6.47(d,J=0.5Hz,1H),5.37-5.30(m,1H),4.00(s,3H),3.81(s,3H),3.30(dd,J=16.5,6.3Hz,1H),3.06(dd,J=16.4,7.2Hz,1H);13C NMR(151MHz,CDCl3)δ168.96,157.64,152.50,143.83,134.83,132.81,130.97,124.20,123.53,122.21,121.48,114.70,113.06,100.24,65.13,55.72,55.32,37.84;HRMS(ESI)m/z:[M+H]+Calcd for C20H19N2O5367.1288;Found 367.1280.
4-氰基苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
4-cyanophenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:8/1→石油/乙酸乙酯:6/1),得到黄色粘稠油状物(49.2mg,产率54%)。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.1Hz,1H),7.69(d,J=8.6Hz,2H),7.58(d,J=7.8Hz,1H),7.36-7.31(m,1H),7.29-7.26(m,1H),7.24(d,J=8.6Hz,2H),6.45(s,1H),5.36-5.28(m,1H),3.98(s,3H),3.31(dd,J=16.6,6.3Hz,1H),3.13(dd,J=16.7,6.8Hz,1H);13C NMR(151MHz,CDCl3)δ167.71,153.44,152.35,134.36,133.89,132.68,130.91,124.31,123.60,122.61,121.48,118.11,112.99,110.31,100.23,65.06,54.97,37.71;HRMS(ESI)m/z:[M+H]+Calcd for C20H16N3O4 362.1135;Found 362.1137.
S-苯基2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙硫酸酯
S-phenyl
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)ethanethioate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(25.4mg,产率29%)。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.0Hz,1H),7.57(d,J=7.8Hz,1H),7.48-7.43(m,5H),7.35-7.31(m,1H),7.28-7.26(m,1H),6.41(d,J=0.8Hz,1H),5.35-5.27(m,1H),3.97(s,3H),3.44(dd,J=16.2,5.9Hz,1H),3.12(dd,J=16.2,7.4Hz,1H);13C NMR(151MHz,CDCl3)δ194.11,152.51,134.68,134.65,132.86,130.98,130.06,129.60,126.86,124.20,123.55,121.50,113.08,100.43,65.05,55.38,46.02;HRMS(ESI)m/z:[M+H]+Calcd forC19H17N2O3S 353.0954;Found 353.0941.
乙基2-(2-甲氧基-1-甲基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(2-methoxy-1-methyl-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(43.8mg,产率58%)。
1H NMR(600MHz,CDCl3)δ7.97(dd,J=8.1,0.7Hz,1H),7.57(d,J=7.8Hz,1H),7.33-7.28(m,1H),7.26-7.22(m,1H),6.42(d,J=0.6Hz,1H),4.07-4.00(m,5H),3.02-2.93(m,2H),1.76(s,3H),1.10(t,J=7.1Hz,3H);13C NMR(151MHz,CDCl3)δ169.02,152.23,139.74,132.70,130.87,123.91,123.20,121.39,113.03,98.83,66.29,62.31,60.95,42.02,24.98,14.06;HRMS(ESI)m/z:[M+H]+Calcd for C16H19N2O4303.1339;Found303.1329.
乙基2-(1-乙基-2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯ethyl
2-(1-ethyl-2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:8/1),得到黄色粘稠油状物(28.7mg,产率36%)。
1H NMR(600MHz,CDCl3)δ7.97(d,J=8.1Hz,1H),7.58(d,J=7.8Hz,1H),7.32-7.29(m,1H),7.26-7.22(m,1H),6.38(s,1H),4.03(s,3H),4.02-3.96(m,2H),3.04-2.91(m,2H),2.16-2.03(m,2H),1.05(t,J=7.1Hz,3H),0.81(t,J=7.3Hz,3H);13C NMR(151MHz,CDCl3)δ168.98,152.80,137.92,132.72,130.92,123.75,123.10,121.32,113.01,98.93,66.24,65.83,60.92,41.62,30.42,14.03,8.09;HRMS(ESI)m/z:[M+H]+Calcd forC17H21N2O4317.1496;Found 317.1491.
2-甲氧基-1-(2-羰基-2-苯基乙基)-1H-咪唑并[1,5-a]吲哚-3(2H)-酮
2-methoxy-1-(2-oxo-2-phenylethyl)-1H-imidazo[1,5-a]indol-3(2H)-one
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:10/1→石油/乙酸乙酯:9/1),得到棕黄色无定形固体(34.2mg,产率43%),mp 125-126℃。
1H NMR(600MHz,CDCl3)δ8.01-7.95(m,3H),7.64-7.59(m,1H),7.55(d,J=7.9Hz,1H),7.53-7.47(m,2H),7.35-7.29(m,1H),7.26-7.23(m,1H),6.40(s,1H),5.57-5.50(m,1H),3.95(s,3H),3.85(dd,J=17.5,5.2Hz,1H),3.36(dd,J=17.5,8.3Hz,1H);13C NMR(151MHz,CDCl3)δ196.56,152.54,136.33,135.99,133.97,132.88,130.93,128.99,128.23,123.97,123.40,121.41,113.00,100.51,64.83,54.98,41.81;HRMS(ESI)m/z:[M+Na]+Calcd for C19H16N2NaO3343.1053;Found 343.1050.
2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酰胺
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetamide
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:4/1→石油/乙酸乙酯:2/1),得到白色无定形固体(43.6mg,产率67%),mp 144-145℃。
1H NMR(600MHz,CDCl3)δ7.94(d,J=8.0Hz,1H),7.55(d,J=7.8Hz,1H),7.33-7.28(m,1H),7.26-7.23(m,1H),6.43(s,1H),5.78(s,1H),5.72(s,1H),5.39-5.25(m,1H),3.94(s,3H),2.99(dd,J=15.3,6.0Hz,1H),2.66(dd,J=15.3,7.4Hz,1H);13C NMR(151MHz,CDCl3)δ171.18,152.40,135.29,132.82,130.85,124.04,123.47,121.46,112.86,100.09,64.79,55.23,38.72;HRMS(ESI)m/z:[M+Na]+Calcd for C13H13N3NaO3282.0849;Found282.0846.
2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)-N-苯基乙酰胺
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)-N-phenylacetamid e
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到黄棕色无定形固体(38.3mg,产率46%),mp 128-129℃。
1H NMR(600MHz,CDCl3)δ8.11(s,1H),7.86(d,J=7.9Hz,1H),7.59(d,J=7.7Hz,2H),7.49(d,J=7.7Hz,1H),7.37-7.30(m,2H),7.26-7.23(m,1H),7.22-7.18(m,1H),7.16-7.11(m,1H),6.39(s,1H),5.48-5.36(m,1H),3.83(s,3H),3.07(dd,J=15.0,6.4Hz,1H),2.72(dd,J=15.0,7.5Hz,1H);13C NMR(151MHz,CDCl3)δ167.25,152.43,137.74,135.22,132.83,130.79,129.21,124.80,124.06,123.50,121.51,120.18,112.75,100.32,64.69,55.21,40.49;HRMS(ESI)m/z:[M+Na]+Calcd for C19H17N3NaO3358.1162;Found 358.1157.
2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)-N-甲基-N-苯基乙酰胺
2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)-N-methyl-N-pheny lacetamide
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到棕色无定形固体(33.8mg,产率39%),mp 113-114℃。
1H NMR(600MHz,CDCl3)δ7.92(d,J=8.0Hz,1H),7.56(d,J=7.8Hz,1H),7.40-7.35(m,2H),7.34-7.30(m,1H),7.30-7.26(m,1H),7.25-7.21(m,1H),7.16-7.11(m,2H),6.42(d,J=0.5Hz,1H),5.46-5.39(m,1H),3.87(s,3H),3.35(s,3H),2.83(dd,J=16.2,6.1Hz,1H),2.44(dd,J=16.2,7.7Hz,1H);13C NMR(151MHz,CDCl3)δ169.00,152.04,143.21,136.05,132.80,130.88,130.19,128.40,127.31,123.80,123.25,121.31,112.91,99.93,64.55,55.31,37.79,37.47;HRMS(ESI)m/z:[M+Na]+Calcd for C20H19N3NaO3372.1319;Found 372.1318.
N-苯甲基-2-(2-甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酰胺
N-benzyl-2-(2-methoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetamid e
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:6/1→石油/乙酸乙酯:4/1),得到棕色无定形固体(21.9mg,产率25%),mp 115-116℃。
1H NMR(600MHz,CDCl3)δ7.92(d,J=7.9Hz,1H),7.53(d,J=7.8Hz,1H),7.34-7.28(m,4H),7.27-7.23(m,3H),6.32(d,J=0.7Hz,1H),6.05(t,J=4.9Hz,1H),5.41-5.33(m,1H),4.53-4.44(m,2H),3.87(s,3H),2.94(dd,J=14.9,6.3Hz,1H),2.62(dd,J=14.9,7.2Hz,1H);13C NMR(151MHz,CDCl3)δ168.40,152.15,137.77,135.19,132.70,130.79,128.79,127.90,127.72,123.91,123.33,121.32,112.86,99.92,64.63,55.25,43.81,39.60;HRMS(ESI)m/z:[M+Na]+Calcd for C20H19N3NaO3372.1319;Found 372.1319.
乙基2-(9-(2-乙酰氨基乙基)-2,7-二甲氧基-3-羰基-2,3-二氢-1H-咪唑并[1,5-a]吲哚-1-基)乙酸酯
ethyl2-(9-(2-acetamidoethyl)-2,7-dimethoxy-3-oxo-2,3-dihydro-1H-imidazo[1,5-a]indol-1-yl)acetate
将反应混合物直接在硅胶上进行快速色谱纯化(石油/乙酸乙酯:2/1→石油/乙酸乙酯:1/1),得到黄色粘稠油状物(90.4mg,产率90%)。
1H NMR(600MHz,DMSO-d6)δ7.97(t,J=5.5Hz,1H),7.66(d,J=8.8Hz,1H),7.20(d,J=1.8Hz,1H),6.92(dd,J=8.7,2.0Hz,1H),5.40-5.30(m,1H),4.12-3.98(m,2H),3.81(s,6H),3.31-3.20(m,2H),3.13(dd,J=16.5,4.1Hz,1H),2.94(dd,J=16.5,6.7Hz,1H),2.84-2.71(m,2H),1.79(s,3H),1.11(t,J=7.1Hz,3H);13C NMR(151MHz,DMSO-d6)δ169.45,169.31,155.77,151.48,133.85,132.34,124.70,112.50,112.39,109.91,102.55,63.98,60.36,55.49,54.26,38.64,35.46,23.61,22.60,13.90;HRMS(ESI)m/z:[M+H]+Calcd forC20H26N3O6404.1816;Found 404.1813.
Claims (10)
1.一种具有式(Ⅴ)所示结构的咪唑并[1,5-a]吲哚-3-酮类化合物的制备方法,其特征在于,所述制备方法包括步骤P1:
P1:采用铑催化吲哚Ⅰ与缺电子炔烃Ⅳ之间的[4+1]环加成反应制备化合物Ⅴ,其中,催化剂为[Cp*RhCl2]2,添加剂为特戊酸钠水合物和冰醋酸,溶剂为1,2-二氯乙烷;
步骤P1涉及的反应方程式如下:
其中,R1代表苯环上任意位置的取代基,其选自以下基团:氢、卤素、烷基、烷氧基、氰基、酯基、3-6元含一个N、O或S原子的杂环;
R2选自以下基团:氢、取代或未取代的烷基;
R3选自以下基团:取代或未取代的烷基;
R4选自以下基团:氢、烷基;
EWG选自以下基团:酯基、酮基、酰胺基;
所述的取代指基团上的一个或多个氢原子被选自下组的取代基取代:甲基、苯基、氰基、酯基。
2.根据权利要求1所述的制备方法,其特征在于,所述的卤素包括F、Cl、Br或I。
3.根据权利要求1所述的制备方法,其特征在于,所述的烷基包括甲基或乙基,所述的烷氧基包括甲氧基或乙氧基;所述取代的烷基包括异丙基、苄基、CH2CO2Et或CH2CN。
5.根据权利要求1所述的制备方法,其特征在于,所述步骤P1的反应温度为60℃,反应时间为24h。
6.根据权利要求1所述的制备方法,其特征在于,所述化合物Ⅰ和化合物Ⅳ的摩尔比为1:1.2。
7.根据权利要求6所述的制备方法,其特征在于,所述催化剂的用量为化合物Ⅰ摩尔量的1%-10%,优选5%。
8.根据权利要求1所述的制备方法,其特征在于,所述特戊酸钠水合物添加剂与吲哚的摩尔比为2:1,所述冰醋酸添加剂与吲哚的摩尔比为2:1。
9.由权利要求1-8任一项所述方法制备得到的如式(Ⅴ)所示的咪唑并[1,5-a]吲哚-3-酮类化合物。
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US5637596A (en) * | 1994-05-24 | 1997-06-10 | Pharmacia S.P.A. | Azabicycloalkyl derivatives of imidazo[1,5-a]indol-3-one and process for their preparation |
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