Fumaric Acid → HCID 21839358, compound

HRID 1738795Notes

Reaction equation

HRID 1738795 reaction equation
[CH3:1][N:2]1[C:10]2[N:9]=[CH:8][N:7]([CH2:11][CH2:12][CH3:13])[C:6]=2[C:5](=[O:14])[N:4]([CH2:15][CH2:16][CH2:17][C:18](=[O:20])[CH3:19])[C:3]1=[O:21].[CH3:22][N:23]1[CH2:28][CH2:27][N:26]([CH2:29][C:30]#[CH:31])[CH2:25][CH2:24]1.C(O)(=O)/C=C/C(O)=O>>[OH:20][C:18]([CH3:19])([C:31]#[C:30][CH2:29][N:26]1[CH2:27][CH2:28][N:23]([CH3:22])[CH2:24][CH2:25]1)[CH2:17][CH2:16][CH2:15][N:4]1[C:5](=[O:14])[C:6]2[N:7]([CH2:11][CH2:12][CH3:13])[CH:8]=[N:9][C:10]=2[N:2]([CH3:1])[C:3]1=[O:21]

Participants

4

Reactant 3

HCID 444972Fumaric AcidHCID 30591091H-Purine-2,6-dione, 3,7-dihydro-3-methyl-1-(4-oxopentyl)-7-propyl-HCID 135140911-Methyl-4-(prop-2-yn-1-yl)piperazine

Product 1

HCID 21839358HCID 21839358, compoundYield 82%

Procedure

1-(4-Hydroxy-4-methyl-7-[4-methylpiperazino]-5-heptynyl)-3-methyl-7-propylxanthine was prepared as oily substance in 82% yield using 3-methyl-1-(4-oxopentyl)-7-propylxanthine and 4-methyl-1-(2-propynyl)-piperazine from stage C1) as in Example 6C1). Salt formation with fumaric acid took place as in Example 7F2) in 55% yield.

Sources & evidence

ORD record
ord-23aebe739e4442898971935e3fb92e0c
Source dataset
uspto-grants-1999_10
Patent number
US05965555

Reaction notes

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