4-methylpiperazine-1-sulfonyl Chloride → 5-[2-Ethoxy-5-(4-methyl-1-piperazinyl) sulphonamidophenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

HRID 21947Notes

Reaction equation

HRID 21947 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([S:8](Cl)(=[O:10])=[O:9])[CH2:4][CH2:3]1.[NH2:12][C:13]1[CH:14]=[CH:15][C:16]([O:33][CH2:34][CH3:35])=[C:17]([C:19]2[NH:20][C:21](=[O:32])[C:22]3[N:27]([CH3:28])[N:26]=[C:25]([CH2:29][CH2:30][CH3:31])[C:23]=3[N:24]=2)[CH:18]=1>>[CH2:34]([O:33][C:16]1[CH:15]=[CH:14][C:13]([NH:12][S:8]([N:5]2[CH2:6][CH2:7][N:2]([CH3:1])[CH2:3][CH2:4]2)(=[O:10])=[O:9])=[CH:18][C:17]=1[C:19]1[NH:20][C:21](=[O:32])[C:22]2[N:27]([CH3:28])[N:26]=[C:25]([CH2:29][CH2:30][CH3:31])[C:23]=2[N:24]=1)[CH3:35]

Participants

3

Reactant 2

HCID 111716174-methylpiperazine-1-sulfonyl ChlorideHCID 1357385605-(5-Amino-2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

Product 1

HCID 1357109855-[2-Ethoxy-5-(4-methyl-1-piperazinyl) sulphonamidophenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

Procedure

The title compound was prepared from 4-methyl-1-piperazinylsulphonyl chloride and 5-(5-amino-2-ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one, following the procedure of Example 41, and was obtained as an orange powder (13%), m.p. 152°-153° C. Found: C,54.32; H,6.38; N,19.88. C22H31N7O4S requires C,53.97; H,6.38; N,20.03%.

Sources & evidence

ORD record
ord-e13bef6d3a2749bdb9df8cddf77cba87
Source dataset
uspto-grants-1995_06
Patent number
US05426107

Reaction notes

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