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4-(Heptyloxy)benzoyl chloride → 4-(3-(Tert-butoxy)-2-(4-nitrobenzamido)-3-oxopropyl)-2-methoxyphenyl 4-(heptyloxy)benzoate

HRID 2410645
Notes
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Reaction equation

HRID 2410645 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:17][C:18](=[O:28])[C:19]2[CH:24]=[CH:23][C:22]([N+:25]([O-:27])=[O:26])=[CH:21][CH:20]=2)[C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])=[CH:4][C:3]=1[O:29][CH3:30].[CH2:31]([O:38][C:39]1[CH:47]=[CH:46][C:42]([C:43](Cl)=[O:44])=[CH:41][CH:40]=1)[CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37]>C(Cl)Cl>[CH2:31]([O:38][C:39]1[CH:40]=[CH:41][C:42]([C:43]([O:1][C:2]2[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:17][C:18](=[O:28])[C:19]3[CH:20]=[CH:21][C:22]([N+:25]([O-:27])=[O:26])=[CH:23][CH:24]=3)[C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])=[CH:4][C:3]=2[O:29][CH3:30])=[O:44])=[CH:46][CH:47]=1)[CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 27241824-(Heptyloxy)benzoyl chlorideHCID 58545890Tert-butyl 3-(4-hydroxy-3-methoxyphenyl)-2-(4-nitrobenzamido)propanoate

Product 1

HCID 585458734-(3-(Tert-butoxy)-2-(4-nitrobenzamido)-3-oxopropyl)-2-methoxyphenyl 4-(heptyloxy)benzoateYield 86%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Prepared using General Procedure 3: To a stirred solution of tert-butyl 3-(4-hydroxy-3-methoxyphenyl)-2-(4-nitrobenzamido)propanoate INT-7 (1.34 g, 3.05 mmol) and TEA (1.28 mL, 9.15 mmol) in DCM (8 mL) at 0° C. was added 4-(heptyloxy)benzoyl chloride (0.81 mL, 3.36 mmol) dropwise. After warming to room temperature and stirring for 1 h, the mixture was quenched with saturated aqueous NaHCO3 (100 mL) and diluted with DCM (100 mL). The organic layer was dried over MgSO4 and concentrated. The product was purified by chromatography (EA/hexanes) to afford 1.70 g (86%) of 4-(3-(tert-butoxy)-2-(4-nitrobenzamido)-3-oxopropyl)-2-methoxyphenyl 4-(heptyloxy)benzoate INT-8. LCMS-ESI (m/z) calculated for C35H42N2O9: 634; no mass ion observed, tR=3.26 min (Method 4).

Workup

  1. customPrepared
  2. customthe mixture was quenched with saturated aqueous NaHCO3 (100 mL)
  3. additiondiluted with DCM (100 mL)
  4. dry with materialThe organic layer was dried over MgSO4
  5. concentrationconcentrated
  6. customThe product was purified by chromatography (EA/hexanes)

Sources & evidence

ORD record
ord-89ea0daad5b64d81b8e677f484c7ec71
Source dataset
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08816121B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes