Cesium carbonate → tert-Butyl 3-(4-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-methylpyrimidin-2-yl)amino)phenyl)azetidine-1-carboxylate

HRID 1779093Notes

Reaction equation

HRID 1779093 reaction equation
Cl[C:2]1[N:7]=[C:6]([CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[CH2:16][C:17]([NH2:19])=[O:18])[C:5]([CH3:20])=[CH:4][N:3]=1.[NH2:21][C:22]1[CH:27]=[CH:26][C:25]([CH:28]2[CH2:31][N:30]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:29]2)=[CH:24][CH:23]=1.C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1.CC([O-])=O.CC([O-])=O.[Pd+2]>[NH2:19][C:17](=[O:18])[CH2:16][C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=1[CH2:9][CH2:8][C:6]1[C:5]([CH3:20])=[CH:4][N:3]=[C:2]([NH:21][C:22]2[CH:23]=[CH:24][C:25]([CH:28]3[CH2:29][N:30]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:31]3)=[CH:26][CH:27]=2)[N:7]=1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 56956222tert-Butyl 3-(4-aminophenyl)azetidine-1-carboxylateHCID 867126242-(2-(2-Chloro-5-methylpyrimidin-4-ylethyl)phenyl)acetamide

Product 1

HCID 86712728tert-Butyl 3-(4-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-methylpyrimidin-2-yl)amino)phenyl)azetidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A suspension of 2-(2-(2-(2-chloro-5-methylpyrimidin-4-yl)ethyl)phenyl)acetamide (K6) (0.150 g, 0.518 mmol), tert-butyl 3-(4-aminophenyl)azetidine-1-carboxylate (A77) (0.141 g, 0.569 mmol), Pd(OAc)2 (2.3 mg, 0.010 mmol), Cs2CO3 (0.506 g, 1.55 mmol) and Xantphos (11.9 mg, 0.021 mmol) in 1,4-dioxane (2 mL) was heated under microwave irradiation at 100° C. for 1.5 hours. The resulting mixture was dry loaded onto silica gel and purified using silica gel column chromatography (CombiFlash Rf, 12 g SiO2 Cartridge, 0-5% MeOH in DCM) to give the title compound A123 as a light orange foam (0.087 g, 33%); 1H NMR (300 MHz, CDCl3) δ 8.12 (s, 1H), 7.59 (d, J=8.5 Hz, 2H), 7.53 (s, 1H), 7.26-7.28 (m, 6H), 5.59 (brs, 2H), 4.32 (t, J=8.7 Hz, 2H), 3.97 (dd, J=6.0, 8.4 Hz, 2H), 3.70-3.76 (m, 3H), 3.08-3.13 (m, 2H), 2.90-2.98 (m, 2H), 2.13 (s, 3H), 1.48 (s, 9H). LCMS-B: rt 7.208 min; m/z 502 [M+H]+.

Workup

  1. customThe resulting mixture was dry
  2. custompurified

Sources & evidence

ORD record
ord-9752fb0acc9a4e57be08ebe91550e806
Source dataset
uspto-grants-2016_02
Patent number
US09266864B2

Reaction notes

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