tert-butyl N-(chlorosulfonyl)carbamate → HCID 71281141, compound

HRID 570347Notes

Reaction equation

HRID 570347 reaction equation
Cl.[NH:2]1[CH2:5][CH:4]([C:6]2[O:10][N:9]=[C:8]([C:11]3[CH:12]=[CH:13][C:14]([CH3:29])=[C:15]([NH:17][C:18]([C:20]4[N:24]5[CH:25]=[CH:26][CH:27]=[CH:28][C:23]5=[N:22][CH:21]=4)=[O:19])[CH:16]=3)[N:7]=2)[CH2:3]1.Cl[S:31]([NH:34][C:35](=[O:41])[O:36][C:37]([CH3:40])([CH3:39])[CH3:38])(=[O:33])=[O:32]>N1C=CC=CC=1>[N:22]1[CH:21]=[C:20]([C:18]([NH:17][C:15]2[CH:16]=[C:11]([C:8]3[N:7]=[C:6]([CH:4]4[CH2:3][N:2]([S:31]([NH:34][C:35](=[O:41])[O:36][C:37]([CH3:39])([CH3:38])[CH3:40])(=[O:32])=[O:33])[CH2:5]4)[O:10][N:9]=3)[CH:12]=[CH:13][C:14]=2[CH3:29])=[O:19])[N:24]2[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=12

Participants

4

Reactant 2

HCID 15677406tert-butyl N-(chlorosulfonyl)carbamateHCID 71281043HCID 71281043, compound

Product 1

HCID 71281141HCID 71281141, compound

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a stirring solution of N-(5-(5-(azetidin-3-yl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide (21) (50 mg, 0.133 mmol) in anhydrous pyridine (1.5 mL) at 0° C. was added tert-butyl chlorosulfonylcarbamate (35 mg, 0.160 mmol). The reaction was stirred to room temperature for 1 hour. The reaction was quenched with water and the solvent was concentrated. The crude product tert-butyl 3-(3-(3-(imidazo[1,2-a]pyridine-3-carboxamido)-4-methylphenyl)-1,2,4-oxadiazol-5-yl)azetidin-1-ylsulfonylcarbamate (128) was purified by preparative HPLC. 1H NMR (400 MHz, d6-DMSO) δ 11.27 (s, 1H), 10.25 (s, 1H), 9.55-9.53 (m, 1H), 8.76 (s, 1H), 8.07 (d, J=1.6 Hz, 1H), 7.93-7.90 (m, 1H), 7.84 (dd, J=1.6, 8.0 Hz, 1H), 7.75-7.71 (m, 1H), 7.52 (d, J=8.4 Hz, 1H), 7.37-7.34 (m, 1H), 4.37-4.33 (m, 5H), 2.38 (s, 3H), 1.38 (s, 9H). MS m/z 554.17 (M+1)+.

Workup

  1. customThe reaction was quenched with water
  2. concentrationthe solvent was concentrated
  3. customThe crude product tert-butyl 3-(3-(3-(imidazo[1,2-a]pyridine-3-carboxamido)-4-methylphenyl)-1,2,4-oxadiazol-5-yl)azetidin-1-ylsulfonylcarbamate (128) was purified by preparative HPLC

Sources & evidence

ORD record
ord-819abe46bf8c4bddae696c623b3b7d1a
Source dataset
uspto-grants-2015_05
Patent number
US09023839B2

Reaction notes

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