Acetic Acid → HCID 59146163, compound

HRID 1512795Notes

Reaction equation

HRID 1512795 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[CH2:27][CH:28]=O)[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:11])[CH3:10].[NH2:30][CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33].C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[CH2:27][CH2:28][NH:30][CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:10])[CH3:11]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 12176Glycine ethyl esterHCID 5049666Sodium triacetoxyborohydrideHCID 59146184HCID 59146184, compound

Product 1

HCID 59146163HCID 59146163, compoundYield 82.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
20 °C

Procedure

To a stirred solution of [7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indol-3-yl]acetaldehyde (D88) (20 mg), ethyl glycinate (10 mg) and acetic acid (0.1 mL) in DCM (10 mL) was added sodium triacetoxyborohydride (21 mg). The reaction was stirred at 20° C. for 1 h. The reaction mixture was partitioned between DCM (25 mL) and water (25 mL). The organic phase was evaporated to give ethyl N-{2-[7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indol-3-yl]ethyl}glycinate (D89) as a brown oil (20 mg), which was used directly in the next hydrolysis step. MS (ES): C26H29ClN4O4 requires 496; found 497.2 (M+H+).

Workup

  1. customThe reaction mixture was partitioned between DCM (25 mL) and water (25 mL)
  2. customThe organic phase was evaporated

Sources & evidence

ORD record
ord-ac8dd205d4c7465cb72a7553844b4089
Source dataset
uspto-grants-2012_07
Patent number
US08217028B2

Reaction notes

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