Water → HCID 68588019, compound

HRID 18175Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[N:17]2[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH2:18]2)[C:10]([CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)=[CH:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].N[C@H](C(O)=O)C[SeH].[Li]CCCC.[CH3:49][S:50]C.O>C1COCC1>[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[N:17]2[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:28])([CH3:29])[CH3:27])=[O:24])[CH2:19][CH2:18]2)[C:10]([CH2:30][C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)=[C:9]1[S:50][CH3:49])=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

Conditions

Temperature: -78 °C

Procedure

A solution of 3-benzyl-7-(4-tert-butoxycarbonyl-piperazin-1-yl)-indole-1-carboxylic acid tert-butyl ester (186 mg, 0.38 mmol) in THF (5 ml) was cooled to −78° C., and Sec-BuLi (1.4 ml, 1.4 M in cyclohexane) was added. After stirring at −78° C. for 20 minutes, 1 ml of dimethyl sulfide was added and the reaction was allowed to warm up to room temperature for 30 minutes. H2O was slowly added, followed by EtOAC. The organic layer was separated and washed with water and brine. After drying over MgSO4, the organic fraction was concentrated in vacuo to give crude 3-benzyl-7-(4-tert-butoxycarbonyl-piperazin-1-yl)-2-methylsulfanyl-indole-1-carboxylic acid tert-butyl ester as an oil (277 mg), which was used without further purification.

Workup

temperatureto warm up to room temperature for 30 minutes
customThe organic layer was separated
washwashed with water and brine
dry with materialAfter drying over MgSO4
concentrationthe organic fraction was concentrated in vacuo

Sources & evidence

ORD record: ord-412b0496ce594ecfa72406626de76218
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07741326B2

Reaction notes

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