Tributyl(prop-1-yn-1-yl)stannane → HCID 11256520, compound

HRID 2105317Notes

Reaction equation

[NH2:1][C@@H:2]1[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[N:9]([CH2:16][C:17]3[CH:24]=[CH:23][CH:22]=[CH:21][C:18]=3[C:19]#[N:20])[C:10](=[O:15])[C:11](Br)=[CH:12][N:13]=2)[CH2:3]1.[CH2:25]([Sn](CCCC)(CCCC)C#CC)[CH2:26][CH2:27]C>O1CCOCC1.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>[NH2:1][C@@H:2]1[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[N:9]([CH2:16][C:17]3[CH:24]=[CH:23][CH:22]=[CH:21][C:18]=3[C:19]#[N:20])[C:10](=[O:15])[C:11]([C:25]#[C:26][CH3:27])=[CH:12][N:13]=2)[CH2:3]1

Participants

Conditions

Temperature: 96 °C

Procedure

2-[2-(3-(R)-Amino-piperidin-1-yl)-5-bromo-6-oxo-6H-pyrimidin-1-ylmethyl]-benzonitrile (Example 1) (120 mg, 0.31 mmol) and tributyl(1-propynyl)tin (140 μL, 0.46 mmol) were stirred in dioxane (5 mL) in a flask purged with nitrogen. Tetrakis(triphenylphosphine)palladium(0) (54 mg, 0.046 mmol) was added, and the solution stirred at 96° C. for 40 h. Concentration in vacuo and purification by silica gel chromatography (16% MeOH/CHCl3) gave 82 mg (76%) of the title compound as a clear oil. 1H NMR (400 MHz, MeOD-d4): δ 7.82 (s, 1H), 7.64 (d, 1H, 7.6 Hz), 7.53 (t, 1H, J=7.6 Hz), 7.36 (t, 1H, J=7.6 Hz), 7.16 (d, 1H, J=7.6 Hz), 5.30 (s, 2H), 3.40-3.48 (m, 1H), 3.21-3.30 (m, 1H), 2.78-2.89 (m, 2H), 2.58-2.66 (m, 1H), 1.91 (s, 3H), 1.85-1.93 (m, 1H), 1.52-1.74 (m, 2H), 1.18-1.27 (m, 1H). MS (ES) [m+H] calc'd for C20H21N5O, 348; found 348.

Workup

custompurged with nitrogen
concentrationConcentration
customin vacuo and purification by silica gel chromatography (16% MeOH/CHCl3)

Sources & evidence

ORD record: ord-193a8cb2da5543d7b0528776ea063b89
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07579357B2

Reaction notes

Loading…