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Diisopropylethylamine → Methyl 3-(3-(1-(2-(benzyloxy)phenyl)cyclobutylamino)-5-bromo-2-oxopyrazin-1(2H)-yl)-4-methylbenzoate

HRID 2070780
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HRID 2070780 반응식
Br[C:2]1[C:3](=[O:20])[N:4]([C:9]2[CH:10]=[C:11]([CH:16]=[CH:17][C:18]=2[CH3:19])[C:12]([O:14][CH3:15])=[O:13])[CH:5]=[C:6]([Br:8])[N:7]=1.[CH2:21]([O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[C:35]1([NH2:39])[CH2:38][CH2:37][CH2:36]1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C(N(CC)C(C)C)(C)C>O1CCOCC1.C(OCC)(=O)C.O>[CH2:21]([O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[C:35]1([NH:39][C:2]2[C:3](=[O:20])[N:4]([C:9]3[CH:10]=[C:11]([CH:16]=[CH:17][C:18]=3[CH3:19])[C:12]([O:14][CH3:15])=[O:13])[CH:5]=[C:6]([Br:8])[N:7]=2)[CH2:38][CH2:37][CH2:36]1)[C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 3

HCID 81531DiisopropylethylamineHCID 66688740methyl 3-(3,5-dibromo-2-oxopyrazin-1(2H)-yl)-4-methylbenzoateHCID 666900331-[2-(Benzyloxy)phenyl]cyclobutan-1-amine

생성물 1

HCID 66689709Methyl 3-(3-(1-(2-(benzyloxy)phenyl)cyclobutylamino)-5-bromo-2-oxopyrazin-1(2H)-yl)-4-methylbenzoate수율 94.3%

시약·촉매·용매 3

HCID 962
Water
용매
HCID 8857Ethyl Acetate용매
HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

To 3-(3,5-dibromo-2-oxo-2H-pyrazin-1-yl)-4-methyl-benzoic acid, methyl ester (Example 1b, 1.083 g) in dioxane (6 mL) was added 1-(2-(benzyloxy)phenyl)cyclobutanamine (Example 268c, 1.16 g) and N,N-diisopropylethylamine (0.76 mL) and the reaction heated at 100° C. for 16 h. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and water, and the organic layer was separated, dried (MgSO4), filtered and the crude product purified (SiO2 chromatography eluting with 20-50% ethyl acetate in iso-hexane) to afford the subtitle product (1.46 g).

후처리

  1. temperatureAfter cooling to room temperature
  2. customthe organic layer was separated
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. customthe crude product purified
  6. wash(SiO2 chromatography eluting with 20-50% ethyl acetate in iso-hexane)

출처 및 근거

ORD 기록
ord-0388701639694920bd822007bbea61e4
출처 데이터셋
uspto-grants-2012_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08299246B2

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