Lithium borohydride → HCID 59129177, compound

HRID 1964402Notes

Reaction equation

HRID 1964402 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:17]=[C:18]5[C:22](=[CH:23][CH:24]=4)[NH:21][C:20]([C:25](OCC)=[O:26])=[CH:19]5)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.[Li+].[BH4-]>C1COCC1.O>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:17]=[C:18]5[C:22](=[CH:23][CH:24]=4)[NH:21][C:20]([CH2:25][OH:26])=[CH:19]5)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

5

Reactant 2

HCID 4148881Lithium borohydrideHCID 16752708HCID 16752708, compound

Product 1

HCID 59129177HCID 59129177, compoundYield 73.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
25 °C

Procedure

Ethyl 5-(1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-1H-indole-2-carboxylate (1.18 g, 3.0 mmol) was added to a solution of LiBH4 (132 mg, 6.0 mmol) in THF (10 mL) and water (0.1 mL). The mixture was allowed to stir for 16 h at 25° C. before it was quenched with water (10 mL) and slowly made acidic by addition of 1 N HCl. The mixture was extracted with three 50-mL portions of ethyl acetate. The organic extracts were dried over Na2SO4 and evaporated to yield 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-(hydroxymethyl)-1H-indol-5-yl)cyclopropanecarboxamide (770 mg, 73%). A small amount was further purified by reverse phase HPLC. ESI-MS m/z calc. 350.4, found 351.3 (M+1)+; retention time 2.59 minutes.

Workup

  1. customwas quenched with water (10 mL) and slowly made acidic by addition of 1 N HCl
  2. extractionThe mixture was extracted with three 50-mL portions of ethyl acetate
  3. dry with materialThe organic extracts were dried over Na2SO4
  4. customevaporated

Sources & evidence

ORD record
ord-7988f2827ad044e3a69afbacb66242be
Source dataset
uspto-grants-2013_04
Patent number
US08415387B2

Reaction notes

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