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Beta-Alanine → 3-{4-[1-(2-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid

HRID 547270
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HRID 547270 반응식
[F:1][C:2]([F:29])([F:28])[C:3]1[CH:8]=[C:7]([CH2:9][O:10][N:11]=[C:12]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20]O)=[CH:16][CH:15]=2)[CH3:13])[CH:6]=[CH:5][C:4]=1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[NH2:30][CH2:31][CH2:32][C:33]([OH:35])=[O:34].CCN(CC)CC.[BH4-].[Na+]>O1CCOCC1.O=[Mn]=O>[F:1][C:2]([F:28])([F:29])[C:3]1[CH:8]=[C:7]([CH2:9][O:10][N:11]=[C:12]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20][NH:30][CH2:31][CH2:32][C:33]([OH:35])=[O:34])=[CH:16][CH:15]=2)[CH3:13])[CH:6]=[CH:5][C:4]=1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1
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참가 물질

7

반응물 4

HCID 239Beta-AlanineHCID 8471TriethylamineHCID 4311764Sodium borohydrideHCID 865959961-(4-hydroxymethyl-phenyl)-ethanone O-(2-trifluoromethyl-biphenyl-4-ylmethyl)-oxime

생성물 1

HCID 729544163-{4-[1-(2-Trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid

시약·촉매·용매 2

HCID 14801
Manganese dioxide
촉매
HCID 312751,4-Dioxane용매

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온도
50 °C

실험 절차

To a suspension of MnO2 (10 eq) in dioxane is added 1-(4-hydroxymethyl-phenyl)-ethanone O-(2-trifluoromethyl-biphenyl-4-ylmethyl)-oxime (1 eq). The resulting mixture is refluxed for 10 minutes. After filtration and concentration, the residue is dissolved in MeOH and treated with β-alanine (2 eq) and Et3N (1.5 eq). The resulting mixture is heated at 50° C. for 30 minutes. After cooling to room temperature, NaBH4 (3 eq) is added in portions. Purification by preparative LCMS results in 3-{4-[1-(2-trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid; 1H NMR (400 MHz, CD3OD) δ 2.28 (s, 3H), 2.75 (t, J=6.8 Hz, 2H), 3.26 (t, J=6.8 Hz, 2H), 4.22 (s, 2H), 5.30 (s, 2H), 7.26-7.77 (m, 12H). MS: (ES+): 471.1 (M+1)+.

후처리

  1. temperatureThe resulting mixture is refluxed for 10 minutes
  2. filtrationAfter filtration and concentration
  3. dissolutionthe residue is dissolved in MeOH
  4. temperatureAfter cooling to room temperature
  5. customPurification by preparative LCMS
  6. customresults in 3-{4-[1-(2-trifluoromethyl-biphenyl-4-ylmethoxyimino)-ethyl]-benzylamino}-propionic acid

출처 및 근거

ORD 기록
ord-30d51bc7ec8f4b26a81dc0207b82733e
출처 데이터셋
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07939519B2

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