Diisopropylamine → 2-(6-Cyano-1-hexyn-1-yl)adenosine

HRID 719085Notes

Reaction equation

I[C:2]1[N:3]=[C:4]([NH2:20])[C:5]2[N:6]=[CH:7][N:8]([C:18]=2[N:19]=1)[C@@H:9]1[O:17][C@H:14]([CH2:15][OH:16])[C@@H:12]([OH:13])[C@H:10]1[OH:11].C(NC(C)C)(C)C.[C:28]([CH2:30][CH2:31][CH2:32][CH2:33][C:34]#[CH:35])#[N:29]>CN(C)C=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:28]([CH2:30][CH2:31][CH2:32][CH2:33][C:34]#[C:35][C:2]1[N:3]=[C:4]([NH2:20])[C:5]2[N:6]=[CH:7][N:8]([C:18]=2[N:19]=1)[C@@H:9]1[O:17][C@H:14]([CH2:15][OH:16])[C@@H:12]([OH:13])[C@H:10]1[OH:11])#[N:29]

Participants

Conditions

Temperature: 50 °C

Procedure

Under argon, to a solution of 2-iodoadenosine (420 mg, 1.07 mmol) and bis(triphenylphosphine)palladium dichloride (75 mg, 10 mol %) dissolved in N,N-dimethylformamide (10 mL), diisopropylamine (0.18 mL, 1.28 mmol, 1.2 eq.) and 6-cyano-1-hexyne (137 mg, 1.28 mmol, 1.2 eq.) were added, and, under ice-cooling conditions, cuprous iodide (10 mg, 5 mol %) was added thereto, followed by stirring at 50° C. for 24 hours. The reaction mixture was cooled to room temperature, and the solvent was removed under reduced pressure. The residue was purified by dry packed silica gel column chromatography (ethyl acetate:methanol=10:1), to thereby yield a compound of the present invention as a pale yellow powder (yield: 217 mg, percent yield: 55%).

Workup

additionwas added
temperatureThe reaction mixture was cooled to room temperature
customthe solvent was removed under reduced pressure
customThe residue was purified
customby dry
customto thereby yield a compound of the present invention as a pale yellow powder (yield: 217 mg, percent yield: 55%)

Sources & evidence

ORD record: ord-fe9b2120a8cd4a878c4844adcc2be5b0
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07132409B2

Reaction notes

Loading…