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1-Amino-3-(morpholin-4-yl)propan-2-ol → 5-[3-(2-hydroxy-3-morpholin-4-yl-propylamino)-propyl]-3-methyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester

HRID 2191487
Notes
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Reaction equation

HRID 2191487 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:26])=[C:8]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[NH:9][C:10]=1[CH2:11][CH2:12][CH2:13]OS(C)(=O)=O)=[O:5])[CH3:2].[NH2:27][CH2:28][CH:29]([OH:37])[CH2:30][N:31]1[CH2:36][CH2:35][O:34][CH2:33][CH2:32]1>ClCCl.[Cl-].[Na+].O>[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:26])=[C:8]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[NH:9][C:10]=1[CH2:11][CH2:12][CH2:13][NH:27][CH2:28][CH:29]([OH:37])[CH2:30][N:31]1[CH2:32][CH2:33][O:34][CH2:35][CH2:36]1)=[O:5])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 28322311-Amino-3-(morpholin-4-yl)propan-2-olHCID 592500502-(tert-butyl) 4-ethyl 3-methyl-5-(3-((methylsulfonyl)oxy)propyl)-1H-pyrrole-2,4-dicarboxylate

Product 1

HCID 685247305-[3-(2-hydroxy-3-morpholin-4-yl-propylamino)-propyl]-3-methyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl esterYield 72.5%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent
2×
HCID 57417360Sodium chloride; waterSolvent

Conditions

Temperature
45 °C

Procedure

5-(3-methanesulfonyloxy-propyl)-3-methyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester 1g (1.13 g, 2.9 mmol) was dissolved in 5.6 ml of dichloromethane under stirring, and 1-amino-3-morpholin-4-yl-propan-2-ol 53c (0.93 g, 5.8 mmol) was added to the solution at room temperature. Upon completion of the addition, the reaction mixture was stirred at room temperature overnight and heated for 14 hours at 45° C. in an oil bath. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was added with saturated brine (15 ml), exacted with dichloromethane (20 ml×3). The combined organic extracts were concentrated under reduced pressure, purified by silica gel column chromatography to obtain the title compound 5-[3-(2-hydroxy-3-morpholin-4-yl-propylamino)-propyl]-3-methyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester 53d (600 mg, yield 72.5%) as a colorless oil.

Workup

  1. additionUpon completion of the addition
  2. stirringthe reaction mixture was stirred at room temperature overnight
  3. concentrationThe combined organic extracts were concentrated under reduced pressure
  4. custompurified by silica gel column chromatography

Sources & evidence

ORD record
ord-1c18c22db65d4c7bab4d7fd6d5958361
Source dataset
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08329682B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes