Hydrochloric Acid → 1-[2-(3-{5-[3-Cyano-4-(2-methylpropyl)phenyl]-1,3,4-thiadiazol-2-yl}-2-ethylphenyl)ethyl]-3-azetidinecarboxylic acid

HRID 1942723Notes

Reaction equation

HRID 1942723 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]([C:13]2[S:17][C:16]([C:18]3[C:19]([CH2:34][CH3:35])=[C:20]([CH2:24][CH2:25][N:26]4[CH2:29][CH:28]([C:30]([O:32]C)=[O:31])[CH2:27]4)[CH:21]=[CH:22][CH:23]=3)=[N:15][N:14]=2)[CH:6]=[CH:7][C:8]=1[CH2:9][CH:10]([CH3:12])[CH3:11])#[N:2].[OH-].[Na+].Cl>C(O)(C)C.O>[C:1]([C:3]1[CH:4]=[C:5]([C:13]2[S:17][C:16]([C:18]3[C:19]([CH2:34][CH3:35])=[C:20]([CH2:24][CH2:25][N:26]4[CH2:29][CH:28]([C:30]([OH:32])=[O:31])[CH2:27]4)[CH:21]=[CH:22][CH:23]=3)=[N:15][N:14]=2)[CH:6]=[CH:7][C:8]=1[CH2:9][CH:10]([CH3:11])[CH3:12])#[N:2]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 66981952Methyl 1-[2-(3-{5-[3-cyano-4-(2-methylpropyl)phenyl]-1,3,4-thiadiazol-2-yl}-2-ethylphenyl)ethyl]-3-azetidinecarboxylate

Product 1

HCID 545793701-[2-(3-{5-[3-Cyano-4-(2-methylpropyl)phenyl]-1,3,4-thiadiazol-2-yl}-2-ethylphenyl)ethyl]-3-azetidinecarboxylic acidYield 29.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 3776IsopropanolSolvent

Procedure

To a solution of methyl 1-[2-(3-{5-[3-cyano-4-(2-methylpropyl)phenyl]-1,3,4-thiadiazol-2-yl}-2-ethylphenyl)ethyl]-3-azetidinecarboxylate (D32) (59 mg) in isopropanol (3 mL) and water (3 mL) was added sodium hydroxide (50 mg). The reaction mixture was stirred at room temperature for 1 h. The reaction mixture was neutralized with 1 M HCl solution. The solvent was removed in vacuo. The residue was dissolved in THF, and filtered. The filtrate was purified by Mass Directed AutoPrep to give 1-[2-(3-{5-[3-cyano-4-(2-methylpropyl)phenyl]-1,3,4-thiadiazol-2-yl}-2-ethylphenyl)ethyl]-3-azetidinecarboxylic acid (E10) (17 mg) as an off-white solid. δH (DMSO-d6, 400 MHz): 0.93 (6H, d), 1.11 (3H, t), 1.99 (1H, m), 2.85 (6H, m), 3.38 (2H, m), 3.61 (1H, m), 4.27 (4H, m), 7.40 (1H, m), 7.51 (2H, t), 7.68 (1H, d), 8.31 (1H, dd), 8.46 (1H, d), 13.04 (1H, br s). MS (ES): C27H30N4O2S requires 474. found 475.2 (M+H+).

Workup

  1. customThe solvent was removed in vacuo
  2. dissolutionThe residue was dissolved in THF
  3. filtrationfiltered
  4. customThe filtrate was purified by Mass Directed AutoPrep

Sources & evidence

ORD record
ord-80102a1618514c3bac16c43005ea5fb6
Source dataset
uspto-grants-2013_03
Patent number
US08389508B2

Reaction notes

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