HCID 86680093, compound → HCID 86680092, compound

HRID 1915887Notes

Reaction equation

HRID 1915887 reaction equation
[OH:1][C:2]1([CH3:25])[CH2:8][N:7]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:6][CH2:5][N:4]([C:16]2[N:20]([CH3:21])[N:19]=[CH:18][C:17]=2[N+:22]([O-])=O)[CH2:3]1>CO.[Pd]>[NH2:22][C:17]1[CH:18]=[N:19][N:20]([CH3:21])[C:16]=1[N:4]1[CH2:3][C:2]([OH:1])([CH3:25])[CH2:8][N:7]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:6][CH2:5]1

Participants

4

Reactant 1

HCID 86680093HCID 86680093, compound

Product 1

HCID 86680092HCID 86680092, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

To a solution of Intermediate 44, tert-butyl 6-hydroxy-6-methyl-4-(1-methyl-4-nitro-1H-pyrazol-5-yl)-1,4-diazepane-1-carboxylate (70 mg, 0.20 mmol) in MeOH (5 mL), was added 10% palladium on carbon (10 mg) and the mixture was stirred under an atmosphere of H2 (60 psi) for 16 hr. The mixture was filtered through Celite® and the solvent was removed under reduced pressure to afford tert-butyl 4-(4-amino-1-methyl-1H-pyrazol-5-yl)-6-hydroxy-6-methyl-1,4-diazepane-1-carboxylate as an oil. To a solution of this amine in DCM (5 mL), DIPEA (0.1 mL, 9.6 mmol), PyBOP (0.16 g, 0.3 mmol) and 5-(tert-butoxycarbonylamino)-2-(2,6-difluorophenyl)-thiazole-4-carboxylic acid (78 mg, 0.22 mmol) were added and the mixture was stirred at room temperature for 18 hr. The mixture was diluted with DCM (30 mL) and washed with water (10 mL). The organic layer was separated, dried over MgSO4 and the solvent removed under reduced pressure. Purification via silica gel column chromatography (0-60% EtOAc/isohexane) gave tert-butyl 4-(4-(5-(tert-butoxycarbonylamino)-2-(2,6-difluorophenyl)thiazole-4-carboxamido)-1-methyl-1H-pyrazol-5-yl)-6-hydroxy-6-methyl-1,4-diazepane-1-carboxylate as a solid (122 mg). To this solid (122 mg, 0.18 mmol) in MeOH (1 mL), a solution of HCl (4 M in 1,4-dioxane, 3.2 mL, 12.9 mmol) was added and the resulting solution was stirred at room temperature for 16 hr. The solvents were removed under reduced pressure and the crude residue was dissolved in MeOH and loaded onto an SCX column. The column was washed with MeOH and eluted with 7 N ammonia in MeOH. Purification by preparative HPLC gave 190 as an off-white solid (40 mg, 44% over three steps). 1H NMR (400 MHz, d6-DMSO) δ 9.19 (s, 1H), 8.24 (s, 1H), 7.59-7.48 (m, 3H), 7.33-7.23 (m, 2H), 3.69 (s, 3H), 3.26-3.02 (m, 4H), 2.98-2.73 (m, 4H), 1.01 (s, 3H). Alkyl NH and OH not observed. LCMS (ES+) m/z 464 (M+1).

Workup

  1. filtrationThe mixture was filtered through Celite®
  2. customthe solvent was removed under reduced pressure

Sources & evidence

ORD record
ord-5baba1d603c04a4aa672cf9816c0d156
Source dataset
uspto-grants-2013_12
Patent number
US08614206B2

Reaction notes

Loading…