Potassium Carbonate → HCID 73854976, compound

HRID 2122005Notes

Reaction equation

[CH2:1]([N:8]1[C:12](=[O:13])[C:11](=[C:14]2[N:18]([CH3:19])[C:17]3[CH:20]=[C:21]([OH:24])[CH:22]=[CH:23][C:16]=3[S:15]2)[S:10][C:9]1=[N:25][C:26]1[CH:27]=[C:28]([CH:31]=[CH:32][C:33]=1[NH:34][CH2:35][CH3:36])[C:29]#[N:30])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[CH2:38][C:39]([O:41]C(C)(C)C)=[O:40].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[CH2:1]([N:8]1[C:12](=[O:13])[C:11](=[C:14]2[N:18]([CH3:19])[C:17]3[CH:20]=[C:21]([O:24][CH2:38][C:39]([OH:41])=[O:40])[CH:22]=[CH:23][C:16]=3[S:15]2)[S:10][C:9]1=[N:25][C:26]1[CH:27]=[C:28]([C:29]#[N:30])[CH:31]=[CH:32][C:33]=1[NH:34][CH2:35][CH3:36])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 80 °C

Procedure

To the product of Example 57 (158 mg, 0.31 mmol) in anhydrous DMF (5 mL) were added tert-butyl bromoacetate (460 μL, 10 equiv) and anhydrous K2CO3 (425 mg, 10 equiv). The suspension was heated at 80° C. under nitrogen for 16 h. After cooling, resulting solids were removed by filtration. The filtrate was concentrated to give a residue, which was purified by chromatography on silica gel, eluting with MeOH-DCM (5:95) to give the product, which was used in the next step without further purification.

Workup

temperatureAfter cooling
customresulting solids
customwere removed by filtration
concentrationThe filtrate was concentrated
customto give a residue, which
customwas purified by chromatography on silica gel
washeluting with MeOH-DCM (5:95)
customto give the product, which
customwas used in the next step without further purification

Sources & evidence

ORD record: ord-f90c515200bd492ba30e32bd3d6c18a3
Source dataset: uspto-grants-2004_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06696473B2

Reaction notes

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