1-Butanol → trans-2-({4'-[(5,7-Difluoro-1,3-benzothiazol-2-yl)amino]-1,1'-biphenyl-4-yl}carbonyl)cyclopentanecarboxylic acid

HRID 2427398노트

반응식

HRID 2427398 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([C:14]([C@@H:16]3[CH2:19][CH2:18][C@H:17]3[C:20]([O:22]C)=[O:21])=[O:15])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.Cl[C:25]1[S:26][C:27]2[C:33]([F:34])=[CH:32][C:31]([F:35])=[CH:30][C:28]=2[N:29]=1.Cl.[OH-].[Na+].[CH2:39](O)CCC>>[F:35][C:31]1[CH:32]=[C:33]([F:34])[C:27]2[S:26][C:25]([NH:1][C:2]3[CH:3]=[CH:4][C:5]([C:8]4[CH:9]=[CH:10][C:11]([C:14]([C@@H:16]5[CH2:39][CH2:19][CH2:18][C@H:17]5[C:20]([OH:22])=[O:21])=[O:15])=[CH:12][CH:13]=4)=[CH:6][CH:7]=3)=[N:29][C:28]=2[CH:30]=1

참가 물질

6

반응물 5

HCID 2631-ButanolHCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 219857472-Chloro-5,7-difluorobenzo[D]thiazoleHCID 58681294Methyl trans-2-[(4'-amino-1,1'-biphenyl-4-yl)carbonyl]cyclobutanecarboxylate

생성물 1

HCID 11719907trans-2-({4'-[(5,7-Difluoro-1,3-benzothiazol-2-yl)amino]-1,1'-biphenyl-4-yl}carbonyl)cyclopentanecarboxylic acid수율 58%

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온도
90 °C

실험 절차

To a solution of methyl trans-2-[(4′-amino-1,1′-biphenyl-4-yl)carbonyl]cyclobutanecarboxylate (80 mg, 0.25 mmol) in n-butanol (8 mL) was added 2-chloro-5,7-difluoro-1,3-benzothiazole (102 mg, 0.49 mmol) and HCl (4.0 M in dioxane, 0.2 mL). The resulting reaction mixture was heated at 90° C. overnight. The mixture was evaporated to dryness, and the residue was brought up in MeOH. Then 1 N aqueous NaOH (2.0 mL, 2.0 mmol) was added, and the reaction mixture was stirred at 50° C. overnight. The reaction mixture was concentrated and the residue was suspended in water. Conc. HCl was added to adjust the acidity to pH 1, and the suspension was extracted with EtOAc. The combined organic phases were washed with brine, dried over sodium sulfate, filtered, and concentrated. The residue was brought up in MeOH, and the precipitate was collected by filtration and dried under vacuum oven to afford trans-2-({4′-[(5,7-difluoro-1,3-benzothiazol-2-yl)amino]-1,1′-biphenyl-4-yl}carbonyl)cyclopentanecarboxylic acid (65 mg, 58%). LC-MS ret. time 3.75; m/z 479.2 (MH+). 1H NMR (400 MHz, DMSO-d6) δ 1.55-1.84 (m, 4H), 2.01 (m, 1H), 2.18 (m, 1H), 3.22 (q, 1H), 4.09 (q, 1H), 7.15 (m, 1H), 7.40 (m, 1H), 7.83 (m, 4H), 7.87 (d, 2H), 8.05 (d, 2H), 11.00 (s, 1H), 12.12 (s, 1H).

후처리

  1. customThe resulting reaction mixture
  2. customThe mixture was evaporated to dryness
  3. concentrationThe reaction mixture was concentrated
  4. additionConc. HCl was added
  5. extractionthe suspension was extracted with EtOAc
  6. washThe combined organic phases were washed with brine
  7. dry with materialdried over sodium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated
  10. filtrationthe precipitate was collected by filtration
  11. customdried under vacuum oven

출처 및 근거

ORD 기록
ord-5687f6e84195418aa8173512a6ab9793
출처 데이터셋
uspto-grants-2011_06
특허 번호
US07968576B2

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