Piperidine → tert-Butyl (1(S)-(1(S)-hydroxy-2-piperidin-1-ylethyl)-3(S)-{[2-(3-methoxypropoxy)-benzoylamino]methyl}-4-methylpentyl)carbamate

HRID 507826Notes

Reaction equation

HRID 507826 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:33]=[CH:32][CH:31]=[CH:30][C:8]=1[C:9]([NH:11][CH2:12][C@H:13]([CH:27]([CH3:29])[CH3:28])[CH2:14][C@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[C@@H:16]1[CH2:18][O:17]1)=[O:10].[NH:34]1[CH2:39][CH2:38][CH2:37][CH2:36][CH2:35]1>C(O)(C)C>[OH:17][C@H:16]([C@@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:14][C@H:13]([CH2:12][NH:11][C:9](=[O:10])[C:8]1[CH:30]=[CH:31][CH:32]=[CH:33][C:7]=1[O:6][CH2:5][CH2:4][CH2:3][O:2][CH3:1])[CH:27]([CH3:29])[CH3:28])[CH2:18][N:34]1[CH2:39][CH2:38][CH2:37][CH2:36][CH2:35]1

Participants

4

Reactant 2

HCID 8082PiperidineHCID 86613450tert-butyl (3(S)-{[2-(3-methoxypropoxy)benzoylamino]methyl}-4-methyl-1(S)-(R)-oxiranylpentyl)-carbamate

Product 1

HCID 86613449tert-Butyl (1(S)-(1(S)-hydroxy-2-piperidin-1-ylethyl)-3(S)-{[2-(3-methoxypropoxy)-benzoylamino]methyl}-4-methylpentyl)carbamate

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

A solution of 0.030 g of tert-butyl (3(S)-{[2-(3-methoxypropoxy)benzoylamino]methyl}-4-methyl-1(S)—(R)-oxiranylpentyl)carbamate in 0.60 ml of isopropanol and 0.050 ml of piperidine is stirred at 70° C. over 1 hour. The reaction mixture is concentrated by evaporation, and the residue is admixed with water and extracted with tert-butyl methyl ether (2×). The combined organic phases are washed with water and brine, dried over sodium sulphate and concentrated by evaporation. The title compound is obtained from the residue by means of flash chromatography (SiO2 60F) as a slightly yellowish oil. Rf=0.34 (200:20:1 dichloromethane-methanol-25% conc. ammonia); Rt=4.08 (gradient I).

Workup

  1. concentrationThe reaction mixture is concentrated by evaporation
  2. extractionextracted with tert-butyl methyl ether (2×)
  3. washThe combined organic phases are washed with water and brine
  4. dry with materialdried over sodium sulphate
  5. concentrationconcentrated by evaporation

Sources & evidence

ORD record
ord-f27308b84bbd41b7af5af54990527682
Source dataset
uspto-grants-2010_08
Patent number
US07786307B2

Reaction notes

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