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Ethanol → tert-butyl N-[4-[3-(2-amino-6-methyl-4-nitrophenyl)phenyl]sulfonyl-5-methylsulfanylthiophene-2-carboximidoyl]carbamate

HRID 2216204
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HRID 2216204 반응식
[C:1]([O:5][C:6](=[O:29])[NH:7][C:8]([C:10]1[S:11][C:12]([S:27][CH3:28])=[C:13]([S:15]([C:18]2[CH:23]=[CH:22][CH:21]=[C:20](B(O)O)[CH:19]=2)(=[O:17])=[O:16])[CH:14]=1)=[NH:9])([CH3:4])([CH3:3])[CH3:2].Br[C:31]1[C:36]([CH3:37])=[CH:35][C:34]([N+:38]([O-:40])=[O:39])=[CH:33][C:32]=1[NH2:41].C([O-])([O-])=O.[Na+].[Na+].C(O)C>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O.CCOC(C)=O.C1(C)C=CC=CC=1>[C:1]([O:5][C:6](=[O:29])[NH:7][C:8]([C:10]1[S:11][C:12]([S:27][CH3:28])=[C:13]([S:15]([C:18]2[CH:19]=[C:20]([C:31]3[C:32]([NH2:41])=[CH:33][C:34]([N+:38]([O-:40])=[O:39])=[CH:35][C:36]=3[CH3:37])[CH:21]=[CH:22][CH:23]=2)(=[O:17])=[O:16])[CH:14]=1)=[NH:9])([CH3:4])([CH3:3])[CH3:2]
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참가 물질

9

반응물 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 218862412-Bromo-3-methyl-5-nitroanilineHCID 140043492[3-[5-[N-[(2-methylpropan-2-yl)oxycarbonyl]carbamimidoyl]-2-methylsulfanylthiophen-3-yl]sulfonylphenyl]boronic acid

생성물 1

HCID 145857628tert-butyl N-[4-[3-(2-amino-6-methyl-4-nitrophenyl)phenyl]sulfonyl-5-methylsulfanylthiophene-2-carboximidoyl]carbamate
수율 33%

시약·촉매·용매 4

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매HCID 1140Toluene용매HCID 8857Ethyl Acetate용매

반응 조건

온도
80 °C

실험 절차

A flask with a stirbar was charged with {[4-(3-dihydroxyboranyl-benzenesulfonyl)-5-methylsulfanyl-thiophen-2-yl]-imino-methyl}-carbamic acid tert-butyl ester ((Example 140: step a (752 mg, 1.65 mmol), 2-bromo-3-methyl-5-nitro-phenylamine ((Example 295: step g) 306 mg, 1.32 mmol), aqueous Na2CO3 (2M, 4 mL, 8 mmol), ethanol (4 mL) and toluene (8 mL). The solution was sparged with argon for 10 min and Pd(PPh3)4 (294 mg, 0.25 mmol) was added. The biphasic solution was vigorously stirred under inert atmosphere at 80° C. for 16 h, then was cooled to rt. EtOAc (40 mL) and water (20 mL) were added and the layers were separated. The organic layer was washed with saturated NaHCO3 (2×20 mL), brine (20 mL) and was dried over sodium sulfate. Removal of the solvents in vacuo followed by column chromatography (10–40% EtOAc in hexanes) of the residue yielded the title compound (245 mg, 33%) as a yellow solid. 1H-NMR (CDCl3): δ 8.03 (ddd, 1H, J=1.2, 2.1, 8.1 Hz), 7.91 (s, 1H), 7.90 (t, 1H, J=1.6 Hz), 7.69 (t, 1H, J=7.9 Hz), 7.53 (app dd, 1H, J=0.7, 2.3 Hz), 7.50 (dt, 1H, J=1.4, 7.7 Hz), 7.44 (app dd, 1H, J=0.5, 2.3 Hz), 3.70 (s, 2H), 2.59 (s, 3H), 2.00 (s, 3H), 1.51 (s, 9H).

후처리

  1. customThe solution was sparged with argon for 10 min
  2. temperaturewas cooled to rt
  3. customthe layers were separated
  4. washThe organic layer was washed with saturated NaHCO3 (2×20 mL), brine (20 mL)
  5. dry with materialwas dried over sodium sulfate
  6. customRemoval of the solvents in vacuo

출처 및 근거

ORD 기록
ord-9f6ac26b2f2b4fa0a1e138e61fb2b0b4
출처 데이터셋
uspto-grants-2006_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07109354B2

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