tert-butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-indole-1-carboxylate → methyl 8-(1-(tert-butoxycarbonyl)indolin-5-yl)-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylate

HRID 1478375Notes

Reaction equation

HRID 1478375 reaction equation
Cl[C:2]1[CH:3]=[CH:4][N:5]2[C:10]([C:11]=1[CH3:12])=[C:9]([CH:13]1[CH2:15][CH2:14]1)[CH:8]=[C:7]([C:16]([O:18][CH3:19])=[O:17])[C:6]2=[O:20].CC1(C)C(C)(C)OB([C:29]2[CH:30]=[C:31]3[C:35](=[CH:36][CH:37]=2)[N:34]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:33][CH2:32]3)O1>>[C:41]([O:40][C:38]([N:34]1[C:35]2[C:31](=[CH:30][C:29]([C:2]3[CH:3]=[CH:4][N:5]4[C:10]([C:11]=3[CH3:12])=[C:9]([CH:13]3[CH2:15][CH2:14]3)[CH:8]=[C:7]([C:16]([O:18][CH3:19])=[O:17])[C:6]4=[O:20])=[CH:37][CH:36]=2)[CH2:32][CH2:33]1)=[O:39])([CH3:44])([CH3:42])[CH3:43]

Participants

3

Reactant 2

HCID 18451469tert-butyl 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-indole-1-carboxylateHCID 86696543Methyl 8-chloro-1-cyclopropyl-9-methyl-4-oxo-quinolizine-3-carboxylate

Product 1

HCID 86696772methyl 8-(1-(tert-butoxycarbonyl)indolin-5-yl)-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylateYield 99%

Procedure

Methyl 8-(1-(tert-butoxycarbonyl)indolin-5-yl)-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylate was prepared according to General Procedure A from methyl 8-chloro-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylate (75 mg, 0.26 mmol) and tert-butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indoline-1-carboxylate (106.4 mg, 0.31 mmol). Purification by flash silica column chromatography (DCM:MeOH) (1:0 to 9:1) afforded the title compound as a yellow solid (121 mg, 99%).

Workup

  1. customMethyl 8-(1-(tert-butoxycarbonyl)indolin-5-yl)-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylate was prepared
  2. customPurification by flash silica column chromatography (DCM:MeOH) (1:0 to 9:1)

Sources & evidence

ORD record
ord-79685543e51e436196cfcc1b7abd78c5
Source dataset
uspto-grants-2016_08
Patent number
US09403818B2

Reaction notes

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