Diisopropylethylamine → HCID 178463589, compound

HRID 243274Notes

Reaction equation

[C:1]1([C:7]2[C:8]3[CH:18]=[CH:17][CH:16]=[CH:15][C:9]=3[S:10][C:11]=2[CH:12]([NH2:14])[CH3:13])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl[C:20]1[N:28]=[CH:27][N:26]=[C:25]2[C:21]=1[N:22]=[CH:23][NH:24]2.CCN(C(C)C)C(C)C>C(O)CCC>[C:1]1([C:7]2[C:8]3[CH:18]=[CH:17][CH:16]=[CH:15][C:9]=3[S:10][C:11]=2[CH:12]([NH:14][C:20]2[N:28]=[CH:27][N:26]=[C:25]3[C:21]=2[N:22]=[CH:23][NH:24]3)[CH3:13])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

Conditions

Temperature: 120 °C

Procedure

A mixture of 1-(3-phenylbenzo[b]thiophen-2-yl)ethylamine from Example 23 (160 mg, 0.63 mmol), 6-chloro-9H-purine (98 mg, 0.63 mmol) and DIPEA (0.16 mL, 0.95 mmol) in n-butanol (1.3 mL) was stirred in a sealed vial for 3 days at 120° C. After cooling to RT, the crude reaction mixture was loaded into an Isolute® SCX-2 which was washed with MeOH and the product eluted with 2M NH3/MeOH. The product containing fractions were combined and concentrated in vacuo and the resulting residue was purified by column chromatography (Si—PCC, gradient 0-6% MeOH in DCM) and then triturated with EtOAc affording 101 (105 mg, 45%). LCMS: RT 4.33 min [M+H]+ 372.1. 1H NMR (DMSO, 400 MHz): δ 8.21 (1H, s), 8.16-8.10 (2H, m), 7.92-7.86 (1H, m), 7.66-7.54 (4H, m), 7.50-7.44 (1H, m), 7.37-7.26 (3H, m), 5.76 (1H, s), 1.50 (3H, d, J=6.94 Hz)

Workup

temperatureAfter cooling to RT
customthe crude reaction mixture
washwas washed with MeOH
washthe product eluted with 2M NH3/MeOH
additionThe product containing fractions
concentrationconcentrated in vacuo
customthe resulting residue was purified by column chromatography (Si—PCC, gradient 0-6% MeOH in DCM)
customtriturated with EtOAc affording 101 (105 mg, 45%)

Sources & evidence

ORD record: ord-8e5bfa5e8a124faf8ed032c7dbc67e1d
Source dataset: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08653089B2

Reaction notes

Loading…