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Sodium borohydride → 1-(Benzo[d][1,3]dioxol-5-yl)-N-(5-((S)-((R)-3-(tert-butyldimethylsilyloxy)pyrrolidin-1-yl)(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)cyclopropanecarboxamide

HRID 1673136
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HRID 1673136 반응식
[NH2:1][C@@H:2]([C:23]1[CH:28]=[CH:27][C:26]([F:29])=[CH:25][C:24]=1[Cl:30])[C:3]1[S:7][C:6]([NH:8][C:9]([C:11]2([C:14]3[CH:22]=[CH:21][C:17]4[O:18][CH2:19][O:20][C:16]=4[CH:15]=3)[CH2:13][CH2:12]2)=[O:10])=[N:5][CH:4]=1.[Si:31]([O:38][C@@H:39]([CH2:43]Cl)[CH2:40][CH:41]=O)([C:34]([CH3:37])([CH3:36])[CH3:35])([CH3:33])[CH3:32].[BH4-].[Na+]>CO.O>[O:18]1[C:17]2[CH:21]=[CH:22][C:14]([C:11]3([C:9]([NH:8][C:6]4[S:7][C:3]([C@@H:2]([N:1]5[CH2:41][CH2:40][C@@H:39]([O:38][Si:31]([C:34]([CH3:36])([CH3:35])[CH3:37])([CH3:32])[CH3:33])[CH2:43]5)[C:23]5[CH:28]=[CH:27][C:26]([F:29])=[CH:25][C:24]=5[Cl:30])=[CH:4][N:5]=4)=[O:10])[CH2:12][CH2:13]3)=[CH:15][C:16]=2[O:20][CH2:19]1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 4311764Sodium borohydrideHCID 13963153(R)-3-(tert-butyldimethylsilyloxy)-4-chlorobutanalHCID 59757103(S)-N-(5-(Amino(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)-1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide

생성물 1

HCID 597571341-(Benzo[d][1,3]dioxol-5-yl)-N-(5-((S)-((R)-3-(tert-butyldimethylsilyloxy)pyrrolidin-1-yl)(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)cyclopropanecarboxamide수율 59%

시약·촉매·용매 2

HCID 887Methanol용매HCID 962Water용매

실험 절차

To a solution of (S)-N-(5-(amino(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)-1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide (1.2 mmol) in MeOH (10 mL) was added (R)-3-(tert-butyldimethylsilyloxy)-4-chlorobutanal (341 mg, 1.4 mmol). The reaction mixture was stirred at room temperature for 5 min. Then NaBH4 (68 mg, 1.8 mmol) was added and stirring was continued at room temperature for 1 h. The reaction was diluted with H2O and extracted with EtOAc. The combined organic layers were washed with brine and dried over MgSO4. After the removal of solvent, the residue was purified by column chromatography (10-20% EtOAc/Hexane) to afford 1-(Benzo[d][1,3]dioxol-5-yl)-N-(5-((S)-((R)-3-(tert-butyldimethylsilyloxy)pyrrolidin-1-yl)(2-chloro-4-fluorophenyl)methyl)thiazol-2-yl)cyclopropanecarboxamide (446 mg, 59% over two steps). 1H NMR (400 MHz, CDCl3) δ 8.45 (s, 1H), 7.79 (dd, J=8.6, 6.3 Hz, 1H), 7.25 (d, J=6.4 Hz, 1H), 7.01-6.94 (m, 2H), 6.85 (td, J=8.3, 1.7 Hz, 2H), 6.78 (d, J=7.9 Hz, 1H), 5.99 (s, 2H), 4.99 (s, 1H), 4.35-4.30 (m, 1H), 2.77 (dd, J=9.9, 6.2 Hz, 1H), 2.51-2.48 (m, 2H), 2.36 (dd, J=9.9, 4.3 Hz, 1H), 2.06-2.01 (m, 1H), 1.71-1.65 (m, 3H), 1.18 (t, J=3.0 Hz, 2H), 0.85 (s, 9H), −0.01 (d, J=7.3 Hz, 6H); HPLC ret. time 3.59 min, 10-99% CH3CN, 5 min run; ESI-MS 630.6 m/z (MH+).

후처리

  1. stirringstirring
  2. waitwas continued at room temperature for 1 h
  3. extractionextracted with EtOAc
  4. washThe combined organic layers were washed with brine
  5. dry with materialdried over MgSO4
  6. customAfter the removal of solvent
  7. customthe residue was purified by column chromatography (10-20% EtOAc/Hexane)

출처 및 근거

ORD 기록
ord-391c7107e88144ca914c59ea37a12cbe
출처 데이터셋
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07999113B2

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