Diisopropylethylamine → HCID 44583623, compound

HRID 1477405Notes

Reaction equation

HRID 1477405 reaction equation
[C:1]1([N:7]2[CH2:12][CH2:11][N:10]([C:13]([C@H:15]3[CH2:22][CH2:21][C:18]4([CH2:20][CH2:19]4)[CH2:17][C@@H:16]3[C:23]([OH:25])=O)=[O:14])[CH2:9][CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl.NO.F[P-](F)(F)(F)(F)F.[N:36]1([O:45][P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.CCN(C(C)C)C(C)C>CN(C=O)C>[OH:45][NH:36][C:23]([C@@H:16]1[C@@H:15]([C:13]([N:10]2[CH2:9][CH2:8][N:7]([C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)[CH2:12][CH2:11]2)=[O:14])[CH2:22][CH2:21][C:18]2([CH2:19][CH2:20]2)[CH2:17]1)=[O:25]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 443297Hydroxyamine hydrochlorideHCID 67006766HCID 67006766, compound

Product 1

HCID 44583623HCID 44583623, compoundYield 58.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

The product from step 9 (36 mg, 0.105 mmole), and hydroxylamine hydrochloride (22 mg, 0.315 mmole) were dissolved in DMF (0.70 ml). To the solution, BOP (49 mg, 0.11 mmole) was added with stirring at r.t. for 10 min. DIEA (61 mg, 0.47 mmole) was added. The mixture was stirred at r.t. for 2 hours. The product was purified with preparative HPLC providing 22 mg of (5S,6S)—N-hydroxy-6-((4-phenylpiperazin-1-yl)carbonyl)spiro(2.5)octane-5-carboxamide. Yield: 44%. MS: M/Z 358.2 (M+H)+; 380.2 (M+Na)+; 737.2 (2M+Na)+.

Workup

  1. stirringThe mixture was stirred at r.t. for 2 hours
  2. customThe product was purified with preparative HPLC

Sources & evidence

ORD record
ord-bc1ec29494fd428fa832d9d417f09c4f
Source dataset
uspto-grants-2016_08
Patent number
US09403775B2

Reaction notes

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