Lithium hydroxide, monohydrate → 4-{5-[(1,4-diazabicyclo[2.2.2]oct-2-ylmethyl)amino]pyrazin-2-yl}-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylic acid

HRID 655745Notes

Reaction equation

HRID 655745 reaction equation
[N:1]12[CH2:8][CH2:7][N:4]([CH2:5][CH2:6]1)[CH2:3][CH:2]2[CH2:9][NH:10][C:11]1[N:12]=[CH:13][C:14]([C:17]2[N:18]=[C:19]([N:27]3[CH2:32][CH2:31][C@@H:30]([NH:33][C:34]([C:36]4[NH:37][C:38]([CH3:43])=[C:39]([Cl:42])[C:40]=4[Cl:41])=[O:35])[C@@H:29]([O:44][CH3:45])[CH2:28]3)[S:20][C:21]=2[C:22]([O:24]CC)=[O:23])=[N:15][CH:16]=1.O.[OH-].[Li+]>CO.O>[N:1]12[CH2:8][CH2:7][N:4]([CH2:5][CH2:6]1)[CH2:3][CH:2]2[CH2:9][NH:10][C:11]1[N:12]=[CH:13][C:14]([C:17]2[N:18]=[C:19]([N:27]3[CH2:32][CH2:31][C@@H:30]([NH:33][C:34]([C:36]4[NH:37][C:38]([CH3:43])=[C:39]([Cl:42])[C:40]=4[Cl:41])=[O:35])[C@@H:29]([O:44][CH3:45])[CH2:28]3)[S:20][C:21]=2[C:22]([OH:24])=[O:23])=[N:15][CH:16]=1

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 59402477ethyl 4-{5-[(1,4-diazabicyclo[2.2.2]oct-2-ylmethyl)amino]pyrazin-2-yl}-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylate

Product 1

HCID 594024554-{5-[(1,4-diazabicyclo[2.2.2]oct-2-ylmethyl)amino]pyrazin-2-yl}-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylic acidYield 70.3%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Ethyl 4-{5-[(1,4-diazabicyclo[2.2.2]oct-2-ylmethyl)amino]pyrazin-2-yl}-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylate (Example 194, 100 mg, 0.14 mmol) was dissolved in methanol (3 mL) and water (1 mL). Lithium hydroxide monohydrate (18 mg, 0.44 mmol) was added and the reaction mixture was stirred at room temperature for 16 h. The methanol was completely evaporated. The resulting crude product was taken in water (20 mL) and acidified to pH 6 with 2N hydrochloric acid (1.0 mL). The aqueous layer was concentrated to a residue, which was purified by preparative thin layer chromatography to afford 64 mg (66.8%) of 4-{5-[(1,4-diazabicyclo[2.2.2]oct-2-ylmethyl)amino]pyrazin-2-yl}-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylic acid as a light yellow solid.

Workup

  1. customThe methanol was completely evaporated
  2. concentrationThe aqueous layer was concentrated to a residue, which
  3. customwas purified by preparative thin layer chromatography

Sources & evidence

ORD record
ord-c3a1620d6bb8406fb6eeea424c9a9cec
Source dataset
uspto-grants-2011_12
Patent number
US08071605B2

Reaction notes

Loading…