HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Formaldehyde → 1-[(3-{2-[3-Cyano-4-(2-methylpropyl)phenyl]-1,3-thiazol-5-yl}-2-ethylphenyl)methyl]-3-azetidinecarboxylic acid

HRID 1942748
Notes
Print preview

Reaction equation

HRID 1942748 reaction equation
[CH2:1]([C:3]1[C:8]([CH:9]=O)=[CH:7][CH:6]=[CH:5][C:4]=1[C:11]1[S:15][C:14]([C:16]2[CH:17]=[CH:18][C:19]([CH2:24][CH:25]([CH3:27])[CH3:26])=[C:20]([CH:23]=2)[C:21]#[N:22])=[N:13][CH:12]=1)[CH3:2].[NH:28]1[CH2:31][CH:30]([C:32]([OH:34])=[O:33])[CH2:29]1.C([BH3-])#N.[Na+].C=O>C(O)C.C(O)(=O)C>[C:21]([C:20]1[CH:23]=[C:16]([C:14]2[S:15][C:11]([C:4]3[C:3]([CH2:1][CH3:2])=[C:8]([CH2:9][N:28]4[CH2:31][CH:30]([C:32]([OH:34])=[O:33])[CH2:29]4)[CH:7]=[CH:6][CH:5]=3)=[CH:12][N:13]=2)[CH:17]=[CH:18][C:19]=1[CH2:24][CH:25]([CH3:27])[CH3:26])#[N:22]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 712FormaldehydeHCID 931923-azetidinecarboxylic AcidHCID 5003444Sodium cyanoborohydrideHCID 866590095-[5-(2-Ethyl-3-formylphenyl)-1,3-thiazol-2-yl]-2-(2-methylpropyl)benzonitrile

Product 1

HCID 545771591-[(3-{2-[3-Cyano-4-(2-methylpropyl)phenyl]-1,3-thiazol-5-yl}-2-ethylphenyl)methyl]-3-azetidinecarboxylic acidYield 21.7%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 702EthanolSolvent

Procedure

A solution of 5-[5-(2-ethyl-3-formylphenyl)-1,3-thiazol-2-yl]-2-(2-methylpropyl)benzonitrile (D92) (120 mg), 3-azetidinecarboxylic acid (64.8 mg) and acetic acid (0.1 mL) in ethanol (10 mL) was stirred at room temperature for 15 min, then sodium cyanoborohydride (60.4 mg) was added. The mixture was stirred at room temperature for 6 h, then formaldehyde (0.11 mL) was added. The mixture was stirred at room temperature overnight. After concentration, the residue was acidified with 2M HCl to pH 5-6, ethyl acetate was added, the organic phase was washed with saturated brine, then dried and evaporated. The residue was purified by Mass Directed AutoPrep to afford 1-[(3-{2-[3-cyano-4-(2-methylpropyl)phenyl]-1,3-thiazol-5-yl}-2-ethylphenyl)methyl]-3-azetidinecarboxylic acid (E43) (32 mg) as a TFA salt. δH (DMSO-d6, 400 MHz): 0.92 (6H, d), 1.05 (3H, t), 1.98 (1H, m), 2.76 (4H, m), 3.65 (1H, m), 4.27 (4H, m), 4.54 (2H, br. s.), 7.40 (1H, m), 7.48 (2H, m), 7.62 (1H, d), 7.94 (1H, s), 8.22 (1H, dd), 8.35 (1H, d), 10.21 (1H, br s), 13.19 (1H, br s). δF (DMSO-d6, 376 MHz): −73.5. MS (ES): C27H29N3O2S requires 459. found 460.2 (M+H+).

Workup

  1. stirringThe mixture was stirred at room temperature overnight
  2. concentrationAfter concentration
  3. additionwas added
  4. washthe organic phase was washed with saturated brine
  5. customdried
  6. customevaporated
  7. customThe residue was purified by Mass Directed AutoPrep

Sources & evidence

ORD record
ord-b6a96d9815f544f4befd369fee107e0a
Source dataset
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08389508B2

Reaction notes

Loading…

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes