Selectfluor → HCID 71267869, compound

HRID 1630313Notes

Reaction equation

HRID 1630313 reaction equation
[C:1]([O:5][C@@H:6]([C:12]1[C:13]([CH3:45])=[N:14][C:15]2[N:16]([N:30]=[C:31]([C:33](=[O:44])[NH:34][CH2:35][C:36]3[CH:41]=[CH:40][C:39]([F:42])=[C:38]([CH3:43])[CH:37]=3)[CH:32]=2)[C:17]=1[C:18]1[C:19]([CH3:29])=[C:20]2[C:25](=[C:26]([F:28])[CH:27]=1)[O:24][CH2:23][CH2:22][CH2:21]2)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:4])([CH3:3])[CH3:2].[B-](F)(F)(F)[F:47].[B-](F)(F)(F)F.C1[N+]2(CCl)CC[N+](F)(CC2)C1>C(#N)C.C(Cl)Cl>[C:1]([O:5][C@@H:6]([C:12]1[C:13]([CH3:45])=[N:14][C:15]2[N:16]([N:30]=[C:31]([C:33](=[O:44])[NH:34][CH2:35][C:36]3[CH:41]=[CH:40][C:39]([F:42])=[C:38]([CH3:43])[CH:37]=3)[C:32]=2[F:47])[C:17]=1[C:18]1[C:19]([CH3:29])=[C:20]2[C:25](=[C:26]([F:28])[CH:27]=1)[O:24][CH2:23][CH2:22][CH2:21]2)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 2724933SelectfluorHCID 86691590HCID 86691590, compound

Product 1

HCID 71267869HCID 71267869, compoundYield 26.1%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

To a slurry of (2S)-ethyl 2-(tert-butoxy)-2-(2-((4-fluoro-3-methylbenzyl)carbamoyl)-7-(8-fluoro-5-methylchroman-6-yl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)acetate (82 mg, 0.132 mmol, 1 equiv) in acetonitrile (2.6 mL) was added Selectfluor (56 mg, 0.159 mmol, 1.2 equiv). After stirring 18 h, reaction is an orange slurry. LCMS indicated ˜50% conversion. The reaction was diluted with DCM and washed with saturated aqueous bicarbonate. The DCM layer was dried (Na2SO4) and concentrated in vacuo. The crude product was purified by flash silica gel chromatography (0-10% EtOAc in hexane) to provide desired product as a yellow solid (22 mg, 26% yield). 1H NMR (500 MHz, CDCl3) δ 7.20-7.16 (m, 1H), 7.15-7.10 (m, 1H), 7.04-6.99 (m, 1H), 6.99-6.94 (m, 1H), 6.87-6.81 (m, 1H), 4.95 (s, 1H), 4.57 (d, J=5.8 Hz, 2H), 4.35 (br. s., 2H), 4.19-4.11 (m, 2H), 2.80 (s, 3H), 2.78-2.73 (m, 2H), 2.27 (s, 3H), 2.18 (br. s., 2H), 1.81 (s, 3H), 1.29 (t, J=6.9 Hz, 3H), 1.17 (s, 9H); 19F NMR (471 MHz, CDCl3) d−119.41 (s, 1F), −139.50 (s, 1F), −175.35 (s, 1F); LCMS (ESI, M+1): 639.5.

Workup

  1. customreaction
  2. washwashed with saturated aqueous bicarbonate
  3. dry with materialThe DCM layer was dried (Na2SO4)
  4. concentrationconcentrated in vacuo
  5. customThe crude product was purified by flash silica gel chromatography (0-10% EtOAc in hexane)

Sources & evidence

ORD record
ord-93aecdd5ab9544bba703c4be994c788a
Source dataset
uspto-grants-2014_07
Patent number
US08791108B2

Reaction notes

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