Isobutylamine → HCID 68616805, compound

HRID 1158379Notes

Reaction equation

HRID 1158379 reaction equation
C(OC([N:8]1[CH2:12][C@@H:11]([CH2:13][N:14]([CH:31]([CH3:33])[CH3:32])[C:15](=[O:30])[C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[C:18]([O:24][CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH:17]=2)[C@H:10]([CH:34]=O)[CH2:9]1)=O)(C)(C)C.[CH2:36]([NH2:40])[CH:37]([CH3:39])[CH3:38].[BH4-].[Na+]>C(Cl)Cl.CO>[CH2:36]([NH:40][CH2:34][C@@H:10]1[CH2:9][NH:8][CH2:12][C@H:11]1[CH2:13][N:14]([CH:31]([CH3:33])[CH3:32])[C:15](=[O:30])[C:16]1[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[C:18]([O:24][CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH:17]=1)[CH:37]([CH3:39])[CH3:38]

Participants

5

Reactant 3

HCID 6558IsobutylamineHCID 4311764Sodium borohydrideHCID 59512275(3S*,4R*)-3-formyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 68616805HCID 68616805, compound

Reagents, catalysts & solvents 1

HCID 21226129Dichloromethane methanolSolvent2×

Procedure

from (3S*,4R*)-3-formyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.75 g, 1.52 mmol), isobutylamine (0.756 mL, 7.61 mmol) and NaBH4 (0.115 g, 3.04 mmol) and purification by flash chromatography on silica gel (CH2Cl2/MeOH 96:4, then CH2Cl2/MeOH (10% NH3 conc.) gradient from 9:1 to 8:2) to give the title compound as colorless oil. MS: 550.4 [M+H]+. tR (HPLC, Nucleosil C18HD column, 5-100% CH3CN/H2O/6 min, 100% CH3CN/2 min, CH3CN and H2O containing 0.1% TFA, flow: 1 mL/min): 4.74 min.

Sources & evidence

ORD record
ord-8b4eb9ad308b4b5e8c89162186455cca
Source dataset
uspto-grants-2010_10
Patent number
US07807709B2

Reaction notes

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