Diethyl Ether → HCID 20217046, compound
Reaction equation
[NH2:1][C:2]1[C:3](=[O:15])[NH:4][C:5](=[O:14])[N:6]([CH2:9][CH2:10][CH2:11][CH2:12][CH3:13])[C:7]=1[NH2:8].[CH:16](Cl)(Cl)Cl.CCOCC>C(O)=O>[CH2:9]([N:6]1[C:7]2[N:8]=[CH:16][NH:1][C:2]=2[C:3](=[O:15])[NH:4][C:5]1=[O:14])[CH2:10][CH2:11][CH2:12][CH3:13]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
37.4 g of 5,6-diamino-1-pentyl-2,4-(1H,3H)-pyrimidinedione (XXXIX) was refluxed in 50 ml of formic acid for 2 h. 50 ml of chloroform was added and ether was then added slowly. The received crystals were filtered off. Yield 36.8 g. The amide was refluxed in 50 ml of 5N NaOH for 2 hours and then neutralized with 5N HCl. The crystals were filtered off and recrystallized from 1.8 l of ethanol. Yield 18.3 g (XXXVIII) NMR (see Table I).
Workup
- filtrationThe received crystals were filtered off
- temperatureThe amide was refluxed in 50 ml of 5N NaOH for 2 hours
- filtrationThe crystals were filtered off
- customrecrystallized from 1.8 l of ethanol
Sources & evidence
- ORD record
- ord-42e33f1a17674613a08f1a28b5689782
- Source dataset
- uspto-grants-1985_10
- Patent number
- US04548818
Reaction notes
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