Triethylamine → 4-[(E)-3-(3-Chloro-phenyl)-acryloyl]-1-[3-((3S,4S)-3-hydroxy-4-methyl-piperidin-1-yl)-propyl]-3-methyl-piperazin-2-one

HRID 559367Notes

Reaction equation

HRID 559367 reaction equation
Cl.Cl.[OH:3][C@H:4]1[C@@H:9]([CH3:10])[CH2:8][CH2:7][N:6]([CH2:11][CH2:12][CH2:13][N:14]2[CH2:19][CH2:18][NH:17][CH:16]([CH3:20])[C:15]2=[O:21])[CH2:5]1.[Cl:22][C:23]1[CH:24]=[C:25]([CH:31]=[CH:32][CH:33]=1)[CH:26]=[CH:27][C:28](O)=[O:29].C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1>CN(C)C=O>[Cl:22][C:23]1[CH:24]=[C:25](/[CH:26]=[CH:27]/[C:28]([N:17]2[CH2:18][CH2:19][N:14]([CH2:13][CH2:12][CH2:11][N:6]3[CH2:7][CH2:8][C@H:9]([CH3:10])[C@H:4]([OH:3])[CH2:5]3)[C:15](=[O:21])[CH:16]2[CH3:20])=[O:29])[CH:31]=[CH:32][CH:33]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 746313-(3-Chlorophenyl)prop-2-enoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 669992801-[3-((3S,4S)-3-hydroxy-4-methyl-piperidin-1-yl)-propyl]-3-methyl-piperazin-2-one dihydrochloride

Product 1

HCID 575504034-[(E)-3-(3-Chloro-phenyl)-acryloyl]-1-[3-((3S,4S)-3-hydroxy-4-methyl-piperidin-1-yl)-propyl]-3-methyl-piperazin-2-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of crude 1-[3-((3S,4S)-3-hydroxy-4-methyl-piperidin-1-yl)-propyl]-3-methyl-piperazin-2-one dihydrochloride (example 41; 0.03 g, 0.1 mmol) in N,N-dimethylformamide (0.8 ml) was added 3-chloro-cinnamic acid (0.02 g, 0.1 mmol), triethylamine (0.05 ml, 0.4 mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluoro-phosphate (0.04 g, 0.1 mmol) and the reaction shaken for 1 h, after which time the reaction mixture was directly purified by preparative HPLC. This afforded the titled product as a colorless gum. MS (ISP)=434.3 (M+H)+.

Workup

  1. customafter which time the reaction mixture was directly purified by preparative HPLC

Sources & evidence

ORD record
ord-ded15cbd0b434dca92f94ac6af1ffc6d
Source dataset
uspto-grants-2011_11
Patent number
US08063042B2

Reaction notes

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