6-Chloro-2,9-dimethyl-9H-purine → 6-Chloro-2-ethyl-9-methylpurine
Reaction equation
[Cl:1][C:2]1[N:10]=[C:9]([CH3:11])[N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH3:12].N[C:14]1C(Cl)=NC(CC)=NC=1NC>>[Cl:1][C:2]1[N:10]=[C:9]([CH2:11][CH3:14])[N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH3:12]Participants
3
Procedure
This was prepared in a manner similar to that described in Example 27 for 6-chloro-2,9-dimethylpurine, except that 5-amino-4-chloro-2-ethyl-6-methylaminopyrimidine was used as the starting material, and the final product was purified by chromatography. The title compound was obtained in 65% yield. NMR (CDCl3, δ from TMS): 1.4 (t, CH2CH3), 3.06 (q, CH2CH3), 3.88 (s, NCH3), 8.00 (s, H8).
Workup
- customThis was prepared in a manner similar to
- customthe final product was purified by chromatography
Sources & evidence
- ORD record
- ord-1d289f5629d64267a6e5002b80c0f106
- Source dataset
- uspto-grants-1991_10
- Patent number
- US05057517
Reaction notes
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