Sodium Hydroxide → 1-Iminomethyl-4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide

HRID 1269019

Reaction equation

HRID 1269019 reaction equation
[CH3:1][CH:2]([CH3:28])[CH:3]([NH:15][C:16]([CH:18]1[CH2:22][CH:21]([CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:20][NH:19]1)=[O:17])[CH:4]1[CH:9]([OH:10])[CH:8]([OH:11])[CH:7]([OH:12])[CH:6]([S:13][CH3:14])[O:5]1.[CH:29](=[NH:33])OCC.[OH-].[Na+]>O1CCOCC1>[CH3:1][CH:2]([CH3:28])[CH:3]([NH:15][C:16]([CH:18]1[CH2:22][CH:21]([CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:20][N:19]1[CH:29]=[NH:33])=[O:17])[CH:4]1[CH:9]([OH:10])[CH:8]([OH:11])[CH:7]([OH:12])[CH:6]([S:13][CH3:14])[O:5]1

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 418556Ethyl formimidate2×HCID 780406994-Pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide

Product 1

HCID 112707711-Iminomethyl-4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amideYield 5.3%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

A stirred suspension of 4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide (153 mg, 0.34 mmol, 1 equiv) and ethyl formimidate (Aldrich) (44 mg, 0.40 mmol, 1.2 equiv) in dioxane (1 mL) was treated with 1M aqueous NaOH (0.74 mL, 0.74 mmol, 2.2 equiv). After 1 h additional ethyl formimidate (44 mg, 0.40 mmol, 1.2 equiv) was added to the reaction mixture, and stirring was continued for 30 min. The reaction mixture was frozen and lyophilized. The lyophilized powder was purified by column chromatography to furnish the title compound (8 mg): TLC Rf=0.48 CHCl3/MeOH/32% aqueus AcOH (5:3:1); MS (ESPOS): 447.7 [M+H]+, 469.7 [M+Na]+; MS (ESNEG): 481.6 [M−H+HCl]−.

Workup

  1. temperatureThe reaction mixture was frozen
  2. customThe lyophilized powder was purified by column chromatography

Sources & evidence

ORD record
ord-0b864395d7584a1897cf9b8276eabc35
Source dataset
uspto-grants-2007_04
Patent number
US07199106B2

Linked notes

Loading…