Ammonium Chloride → HCID 66640934, compound

HRID 2261169Notes

Reaction equation

HRID 2261169 reaction equation
[CH2:1]([O:8][C:9]([NH:11][CH:12]([CH2:20][NH:21][C:22]1[C:27]([CH:28]=[O:29])=[C:26]([N:30]2[CH2:35][CH2:34][CH:33]([C:36]3[CH:45]=[CH:44][C:43]4[CH2:42][CH2:41][CH2:40][NH:39][C:38]=4[N:37]=3)[CH2:32][CH2:31]2)[N:25]=[CH:24][N:23]=1)[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH4-].[Na+].[Cl-].[NH4+]>CO.O.C(OCC)(=O)C>[CH2:1]([O:8][C:9]([NH:11][CH:12]([CH2:20][NH:21][C:22]1[C:27]([CH2:28][OH:29])=[C:26]([N:30]2[CH2:35][CH2:34][CH:33]([C:36]3[CH:45]=[CH:44][C:43]4[CH2:42][CH2:41][CH2:40][NH:39][C:38]=4[N:37]=3)[CH2:32][CH2:31]2)[N:25]=[CH:24][N:23]=1)[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 3

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 86618933HCID 86618933, compound

Product 1

HCID 66640934HCID 66640934, compoundYield 47.1%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

340 mg (0.55 mmole) of tert-butyl 2-benzyloxycarbonylamino-3-{5-formyl-6-[4-(5,6,7,8-tetrahydro-[1,8]naphthyridin-2-yl)-piperidin-1-yl]-pyrimidin-4-ylamino}-propionate in 50 ml of methanol with 350 mg (9.2 mmoles) of sodium borohydride is stirred at ambient temperature for 2 hours. Then 100 ml of a saturated solution of ammonium chloride is added and the reaction mixture is evaporated to dryness under reduced pressure (2 kPa). The residue obtained is taken up in a mixture of water and ethyl acetate. The organic phase is dried over magnesium sulphate then the solvent is evaporated off under reduced pressure (2 kPa). The crude product obtained is chromatographed on silica gel eluting with a gradient of methylene chloride and ethyl acetate (100-0 to 0-100). 160 mg of expected product is obtained in the form of a yellow oil.

Workup

  1. customthe reaction mixture is evaporated to dryness under reduced pressure (2 kPa)
  2. customThe residue obtained
  3. dry with materialThe organic phase is dried over magnesium sulphate
  4. customthe solvent is evaporated off under reduced pressure (2 kPa)
  5. customThe crude product obtained
  6. customis chromatographed on silica gel eluting with a gradient of methylene chloride and ethyl acetate (100-0 to 0-100)

Sources & evidence

ORD record
ord-e1b24ee28f5e4113aad535860f591025
Source dataset
uspto-grants-2010_12
Patent number
US07846932B2

Reaction notes

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