Cyclopentaneethanol → 2-(3,4-Difluorophenyl)-4-(2-cyclopentyl-1-ethoxy)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone

HRID 381970Notes

Reaction equation

HRID 381970 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:14](=[O:15])[C:13]([O:16]S(C3C=CC(C)=CC=3)(=O)=O)=[C:12]([C:27]3[CH:32]=[CH:31][C:30]([S:33]([CH3:36])(=[O:35])=[O:34])=[CH:29][CH:28]=3)[CH:11]=[N:10]2)[CH:5]=[CH:6][C:7]=1[F:8].[CH:37]1([CH2:42][CH2:43]O)[CH2:41][CH2:40][CH2:39][CH2:38]1>O>[F:1][C:2]1[CH:3]=[C:4]([N:9]2[C:14](=[O:15])[C:13]([O:16][CH2:43][CH2:42][CH:37]3[CH2:41][CH2:40][CH2:39][CH2:38]3)=[C:12]([C:27]3[CH:32]=[CH:31][C:30]([S:33]([CH3:36])(=[O:34])=[O:35])=[CH:29][CH:28]=3)[CH:11]=[N:10]2)[CH:5]=[CH:6][C:7]=1[F:8]

Participants

4

Reactant 2

HCID 69833CyclopentaneethanolHCID 219340082-(3,4-difluorophenyl)-4-tosyloxy-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone

Product 1

HCID 219342012-(3,4-Difluorophenyl)-4-(2-cyclopentyl-1-ethoxy)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The title compound was prepared according to the method of Example 178, starting with 2-(3,4-difluorophenyl)-4-tosyloxy-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone in place of 2-(4-fluorophenyl)-4-tosyloxy-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone and substituting 2-cyclopentyl-1-ethanol in place of 2-ethyl-1-hexanol (yield: 115 mg, 60%). mp 100-101° C. 1H NMR (300 MHz, DMSO-d6) δ 1.00 (m, 2H), 1.38 (m, 2H), 1.57 (m, 7H), 3.30 (s, 3H), 4.42 (t, J=7 Hz, 2H), 7.52 (m, 1H), 7.62 (m, 1H), 7.81 (m, 1H), 7.90 (d, J=9 Hz, 2H), 8.08 (d, J=9 Hz, 2H), 8.22 (s, 1H). MS (APCI+) m/z 475 (M+H)+; (APCI−) m/z 509 (M+Cl)−. Anal. calc. for C24H24F2N2O4S.0.25 H2O: C, 60.17; H, 5.15; N, 5.84. Found: C, 60.12; H, 5.14; N, 5.76.

Sources & evidence

ORD record
ord-288a0100102745fbb0a89ffd4a16ab61
Source dataset
uspto-grants-2001_10
Patent number
US06307047B1

Reaction notes

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