Potassium Phosphate, Tribasic → 3-chloro-4-(3-(8-fluoro-1-methyl-2,4-dioxo-1,2-dihydroquinazolin-3 (4H)-yl)-2-methylphenyl)-7-(2-hydroxypropan-2-yl)-9H-carbazole-1-carboxamide

HRID 523283Notes

Reaction equation

HRID 523283 reaction equation
Br[C:2]1[C:14]2[C:13]3[C:8](=[CH:9][C:10]([C:15]([OH:18])([CH3:17])[CH3:16])=[CH:11][CH:12]=3)[NH:7][C:6]=2[C:5]([C:19]([NH2:21])=[O:20])=[CH:4][C:3]=1[Cl:22].[F:23][C:24]1[CH:25]=[CH:26][CH:27]=[C:28]2[C:33]=1[N:32]([CH3:34])[C:31](=[O:35])[N:30]([C:36]1[CH:41]=[CH:40][CH:39]=[C:38](B3OC(C)(C)C(C)(C)O3)[C:37]=1[CH3:51])[C:29]2=[O:52].[O-]P([O-])([O-])=O.[K+].[K+].[K+]>C1COCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:22][C:3]1[CH:4]=[C:5]([C:19]([NH2:21])=[O:20])[C:6]2[NH:7][C:8]3[C:13]([C:14]=2[C:2]=1[C:38]1[CH:39]=[CH:40][CH:41]=[C:36]([N:30]2[C:29](=[O:52])[C:28]4[C:33](=[C:24]([F:23])[CH:25]=[CH:26][CH:27]=4)[N:32]([CH3:34])[C:31]2=[O:35])[C:37]=1[CH3:51])=[CH:12][CH:11]=[C:10]([C:15]([OH:18])([CH3:17])[CH3:16])[CH:9]=3

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 1177612874-bromo-3-chloro-7-(2-hydroxypropan-2-yl)-9H-carbazole-1-carboxamide2×HCID 1239796828-Fluoro-1-methyl-3-[2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]quinazoline-2,4-dione2×

Product 1

HCID 865826493-chloro-4-(3-(8-fluoro-1-methyl-2,4-dioxo-1,2-dihydroquinazolin-3 (4H)-yl)-2-methylphenyl)-7-(2-hydroxypropan-2-yl)-9H-carbazole-1-carboxamideYield 71.8%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 4-bromo-3-chloro-7-(2-hydroxypropan-2-yl)-9H-carbazole-1-carboxamide [Intermediate 3] (100 mg, 0.262 mmol), 8-fluoro-1-methyl-3-(RS)-(2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)quinazoline-2,4(1H,3H)-dione [Intermediate 2] (161 mg, 0.393 mmol), tetrakis(triphenylphosphine)palladium (15 mg, 0.013 mmol) and 2 M aqueous K3PO4 (0.26 mL, 0.524 mmol) in THF (2 mL) in a pressure reaction vial was heated at 90° C. for 2.5 h. The cooled mixture was concentrated, and the residue was purified by column chromatography on silica gel (40 g), eluting with DCM-MeOH—NH4OH (gradient from 90:9:1-97:2.7:0.3). The resulting impure product was again purified by column chromatography on silica gel (40 g), eluting with EtOAc-hexanes (gradient from 50-100%), to give 3-chloro-4-(3-(8-fluoro-1-methyl-2,4-dioxo-1,2-dihydroquinazolin-3(4H)-yl)-2-methylphenyl) -7-(2-hydroxypropan-2-yl)-9H-carbazole-1-carboxamide (mixture of four atropisomers) as a white solid (110 mg, 68% yield). Mass spectrum m/z 567 (M+H—H2O)+. 1H NMR (400 MHz, chloroform-d) δ 10.46 (s, 1H), 8.17-8.10 (m, 1H), 7.76 (s, 1H), 7.69 (d, J=1.1 Hz, 1H), 7.59-7.53 (m, 1H), 7.48 (ddt, J=13.9, 8.1, 1.8 Hz, 1H), 7.39 (dd, J=12.4, 7.8 Hz, 2H), 7.28-7.19 (m, 2H), 6.97 (t, J=8.5 Hz, 1H), 3.87-3.93 (m, 3H), 1.87 (d, J=1.8 Hz, 3H), 1.65 (s, 3H), 1.65 (s, 3H).

Workup

  1. customin a pressure reaction
  2. concentrationThe cooled mixture was concentrated
  3. customthe residue was purified by column chromatography on silica gel (40 g)
  4. washeluting with DCM-MeOH—NH4OH (gradient from 90:9:1-97:2.7:0.3)
  5. customThe resulting impure product was again purified by column chromatography on silica gel (40 g)
  6. washeluting with EtOAc-hexanes (gradient from 50-100%)

Sources & evidence

ORD record
ord-be507fa8eafc4a99a4e3aa7ee5d883e9
Source dataset
uspto-grants-2016_05
Patent number
US09334290B2

Reaction notes

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