Acetic Acid → HCID 178474961, compound

HRID 1909360Notes

Reaction equation

HRID 1909360 reaction equation
Cl.[O:2]1[C:6]2[CH:7]=[CH:8][CH:9]=[C:10]([CH:11]3[CH2:16][CH2:15][N:14]([CH2:17][CH2:18][C@H:19]4[CH2:24][CH2:23][C@H:22]([NH2:25])[CH2:21][CH2:20]4)[CH2:13][CH2:12]3)[C:5]=2[O:4][CH2:3]1.C(N(CC)C(C)C)(C)C.[C:35](O)(=[O:37])[CH3:36].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>CN(C=O)C>[O:2]1[C:6]2[CH:7]=[CH:8][CH:9]=[C:10]([CH:11]3[CH2:16][CH2:15][N:14]([CH2:17][CH2:18][C@H:19]4[CH2:20][CH2:21][C@H:22]([NH:25][C:35](=[O:37])[CH3:36])[CH2:23][CH2:24]4)[CH2:13][CH2:12]3)[C:5]=2[O:4][CH2:3]1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 178479251HCID 178479251, compound2×

Product 1

HCID 178474961HCID 178474961, compoundYield 61.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a stirred mixture of Trans-4-[2-(4-Benzo[1,3]dioxol-4-yl-piperidin-1-yl)-ethyl]-cyclohexylamine hydrochloride (intermediate A) (50 mg, 0.136 mmol) in DMF (0.8 ml) was added N,N-diisopropylethylamine (62 mg, 0.0833 ml, 0.477 mmol), acetic acid (9.82 mg, 9.35 μl, 0.164 mmol) and TBTU (52.4 mg, 0.164 mmol). The mixture was allowed to stir at room temperature for 4 h and poured into ice/water (0.5 ml) The crude reaction mixture was concentrated in vacuo. The reaction mixture was solved with sat NaHCO3 (1×10 mL). and extracted with dichloromethane (3×20 mL). The organic layers were dried over MgSO4 and concentrated in vacuo. The crude material was purified by flash chromatography (silica gel, 10 g, 0% to 20% MeOH in dichloromethane) to yield the title compound as an white solid (31 mg, 61%), MS (ISP) m/z=373.5 [(M+H)+].

Workup

  1. customreaction mixture
  2. concentrationwas concentrated in vacuo
  3. extractionand extracted with dichloromethane (3×20 mL)
  4. dry with materialThe organic layers were dried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe crude material was purified by flash chromatography (silica gel, 10 g, 0% to 20% MeOH in dichloromethane)

Sources & evidence

ORD record
ord-db0705dc3b4244ec9a5d750fd97f161a
Source dataset
uspto-grants-2013_12
Patent number
US08598357B2

Reaction notes

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