Tyramine → 4-(2-(2-iodo-9-isopropyl-9H-purin-6-ylamino)ethyl)phenol

HRID 1422481Notes

Reaction equation

Cl[C:2]1[N:10]=[C:9]([I:11])[N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH:12]([CH3:14])[CH3:13].[NH2:15][CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=1.C(N(CC)CC)C>CC(O)C>[I:11][C:9]1[N:8]=[C:7]2[C:3]([N:4]=[CH:5][N:6]2[CH:12]([CH3:14])[CH3:13])=[C:2]([NH:15][CH2:16][CH2:17][C:18]2[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=2)[N:10]=1

Participants

Conditions

Temperature: 85 °C

Procedure

A mixture of 6-chloro-2-iodo-9-isopropyl-9H-purine (a) (1.0 g, 3.1 mmol), tyramine (0.64 g, 4.65 mmol), triethylamine (0.63 g, 6.2 mmol) and 2-propanol (30 mL) was heated at 85° C. for 2 hr. The reaction mixture was concentrated and saturated aqueous sodium bicarbonate solution was added. The mixture was extracted with ethyl acetate (50 ml×3). The combined organic layers were dried over sodium sulfate, filtered, and concentrated. The residue was purified by column chromatography on silica gel (25 to 75% ethyl acetate in hexane eluant) to afford the title compound as a solid. MS m/z 424.1 (M+1).

Workup

concentrationThe reaction mixture was concentrated
additionsaturated aqueous sodium bicarbonate solution was added
extractionThe mixture was extracted with ethyl acetate (50 ml×3)
dry with materialThe combined organic layers were dried over sodium sulfate
filtrationfiltered
concentrationconcentrated
customThe residue was purified by column chromatography on silica gel (25 to 75% ethyl acetate in hexane eluant)

Sources & evidence

ORD record: ord-f6339d6ce5dc42d9a85533db62219b13
Source dataset: uspto-grants-2015_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08927281B2

Reaction notes

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