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Triethylamine → (1R,2R)-2-(4-Chlorophenyl)-N-[2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-4-methyloxazole-5-carboxamide

HRID 1419701
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HRID 1419701 반응식
[Cl:1][C:2]1[CH:15]=[CH:14][C:5]([C:6]([NH:8][C@H:9]([C:11]([OH:13])=O)[CH3:10])=O)=[CH:4][CH:3]=1.C(Cl)(=O)[C:17](Cl)=[O:18].[NH2:22][C@H:23]([CH3:40])[C@:24]([C:32]1[CH:37]=[CH:36][C:35]([F:38])=[CH:34][C:33]=1[F:39])([OH:31])[CH2:25][N:26]1[CH:30]=[N:29][CH:28]=[N:27]1.C(N(CC)CC)C>C1C=CC=CC=1.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:6]2[O:13][C:11]([C:17]([NH:22][C@H:23]([CH3:40])[C@:24]([C:32]3[CH:37]=[CH:36][C:35]([F:38])=[CH:34][C:33]=3[F:39])([OH:31])[CH2:25][N:26]3[CH:30]=[N:29][CH:28]=[N:27]3)=[O:18])=[C:9]([CH3:10])[N:8]=2)=[CH:14][CH:15]=1
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참가 물질

7

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HCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 1241470(2S)-2-[(4-chlorophenyl)formamido]propanoic acidHCID 10967497(2R,3R)-3-Amino-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

생성물 1

HCID 5480567(1R,2R)-2-(4-Chlorophenyl)-N-[2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-4-methyloxazole-5-carboxamide

시약·촉매·용매 2

HCID 241Benzene용매HCID 962Water용매

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온도
0 °C

실험 절차

A solution of N-(4-chlorobenzoyl)-L-alanine (1.46 g, 6.41 mmol) in benzene (35 mL) was treated with oxalyl chloride (0.55 mL, 6.41 mmol) at 45° C. for 3 h. Next, a solution of (2R,3R)-3-amino-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (1.72 g, 6.41 mmol) and triethylamine (2.2 mL) in CHCl2 (20 mL) was slowly added and the reaction mixture was stirred at 0° C. for 0.5 h. The crude product was then poured into cold water and extracted with CHCl3. The organic solution was dried over Na2SO4, filtered and the filtrate was concentrated in vacuo to give a mixture of several products (TLC) from which the title compound was isolated by flash chromatography as a white solid (140 mg): mp 89°-93° C.; 1H NMR (300 MHz, CDCl3) δ (TMS) 8.04 (d, J=8.5, 2H, arom), 7.79 (s, 1H, triazole), 7.78 (s, 1H, triazole), 7.49 (d, J=8.5, 2H, arom), 7.37 (dt, Jd =6.5, Jt =8.8, 1H, arom), 6.8-6.6 (m, 3H, arom, NH), 5.38 (d, J=1.1, 1H, OH), 5.04 (d, J=14.3, 1H, TrCH(H)), 4.96 (br quint, J=7, 1H, CHMe), 4.53 (d, J=14.3, 1H, TrCH(H)), 2.60 (s, 3H, Me-oxazole), 1.04 (d, J=6.8, 3H, MeCH); HPLC-MS 263 and 265 (ethylaminoacyl group, C13H12ClN2O2), 220 and 222 (acyl group, C11H7ClNO2), 224 (Tr--CH2COHAr, C10H8F2N3O); [α]D =-141° (c 0.5, CHCl3). Analysis calculated for C23H20ClF2N5O3 : C 56.62; H 4.13; N 14.35. Found: C 56.41; H 4.19; N 14.50.

후처리

  1. extractionextracted with CHCl3
  2. dry with materialThe organic solution was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated in vacuo
  5. customto give

출처 및 근거

ORD 기록
ord-4b315e11eb6247d8b18657df3d59e545
출처 데이터셋
uspto-grants-1999_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05888941

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