Glycolic Acid → HCID 24853450, compound

HRID 2065917Notes

Reaction equation

HRID 2065917 reaction equation
[NH2:1][CH2:2][CH:3]([OH:30])[CH2:4][O:5][C:6]1[C:11]([CH3:12])=[CH:10][C:9]([C:13]2[N:17]=[C:16]([C:18]3[CH:19]=[N:20][C:21]([CH2:26][CH3:27])=[C:22]([CH2:24][CH3:25])[CH:23]=3)[O:15][N:14]=2)=[CH:8][C:7]=1[CH2:28][CH3:29].[C:31](O)(=[O:34])[CH2:32][OH:33].CCN(C(C)C)C(C)C.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>C(Cl)Cl.CC(=O)OCC>[CH2:24]([C:22]1[CH:23]=[C:18]([C:16]2[O:15][N:14]=[C:13]([C:9]3[CH:10]=[C:11]([CH3:12])[C:6]([O:5][CH2:4][CH:3]([OH:30])[CH2:2][NH:1][C:32](=[O:33])[CH2:31][OH:34])=[C:7]([CH2:28][CH3:29])[CH:8]=3)[N:17]=2)[CH:19]=[N:20][C:21]=1[CH2:26][CH3:27])[CH3:25]

Participants

7

Reactant 4

HCID 757Glycolic AcidHCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 59392500HCID 59392500, compound

Product 1

HCID 24853450HCID 24853450, compoundYield 80%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of (RS)-1-amino-3-{4-[5-(5,6-diethyl-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-2-ethyl-6-methyl-phenoxy}-propan-2-ol (99 mg, 0.24 mmol), glycolic acid (18.5 mg, 0.244 mmol) and Hünig's base (78 mg, 0.61 mmol) in DCM (5 mL) is added PyBOP (126.7 mg, 0.24 mmol) and the mixture is stirred at rt for 30 min. The mixture is diluted with EA, washed with sat. aq. NaHCO3 solution, dried over MgSO4, filtered and concentrated. The crude product is purified by chromatography on prep. TLC plates eluting with DCM:MeOH 10:1 to give N—((RS)-3-{4-[5-(5,6-diethyl-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-2-ethyl-6-methyl-phenoxy}-2-hydroxy-propyl)-2-hydroxy-acetamide (90 mg) as an oil; LC-MS: tR=0.88 min, [M+1]+=469.25.

Workup

  1. washwashed with sat. aq. NaHCO3 solution
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude product is purified by chromatography on prep
  6. washTLC plates eluting with DCM:MeOH 10:1

Sources & evidence

ORD record
ord-f5967a2074ae494eba2e79065fa833fd
Source dataset
uspto-grants-2012_10
Patent number
US08288554B2

Reaction notes

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