2-Chloroadenosine → HCID 15036649, compound
Reaction equation
Cl[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].[O:21]1[CH2:26][CH2:25][CH:24]([CH2:27][CH2:28][NH2:29])[CH2:23][CH2:22]1>>[O:21]1[CH2:26][CH2:25][CH:24]([CH2:27][CH2:28][NH:29][C:2]2[N:3]=[C:4]([NH2:20])[C:5]3[N:6]=[CH:7][N:8]([C:18]=3[N:19]=2)[C@@H:9]2[O:17][C@H:14]([CH2:15][OH:16])[C@@H:12]([OH:13])[C@H:10]2[OH:11])[CH2:23][CH2:22]1Participants
Procedure
A mixture of 2-chloroadenosine (0.3 g) and 2-(tetrahydropyran-4-yl)ethylamine (1.15 g) is stirred under nitrogen at 140° for 6 hours. The mixture is concentrated to dryness at reduced pressure, the residue is dissolved in ethanol, the solution is treated with propylene oxide (2 ml) and stirred overnight. It is concentrated to dryness and chromatographed through a 25×180 mm column of silica gel, with methylene chloride and ammonia-saturated methanol (9:1) as eluent. The fractions containing the desired product are combined and concentrated at reduced pressure. The residue is dissolved in absolute ethanol and treated with ethanolic hydrogen chloride to form the hydrochloride salt of 2-[2-(tetrahydropyran-4-yl)ethyl-amino]adenosine; [alpha]D25 -13.6° (DMSO); m.p. 120°-130° dec.
Workup
- concentrationThe mixture is concentrated to dryness at reduced pressure
- dissolutionthe residue is dissolved in ethanol
- additionthe solution is treated with propylene oxide (2 ml)
- stirringstirred overnight
- concentrationIt is concentrated to dryness
- customchromatographed through a 25×180 mm column of silica gel, with methylene chloride and ammonia-saturated methanol (9:1) as eluent
- additionThe fractions containing the desired product
- concentrationconcentrated at reduced pressure
- dissolutionThe residue is dissolved in absolute ethanol
- additiontreated with ethanolic hydrogen chloride
Sources & evidence
- ORD record
- ord-e329001ff8714ea18a2be184fb59bae5
- Source dataset
- uspto-grants-1991_07
- Patent number
- US05034381
Reaction notes
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