Dimethylformamide → (6S-cis)-1-chloro-N-[2-chloro-5-(6-chlorotetrahydro-1,3-dioxo-1H-pyrrolo[1,2-c]imidazol-2(3H)-yl)-4-fluorophenyl]methanesulfonamide

HRID 1107252Notes

Reaction equation

[Cl:1][CH2:2][S:3]([NH:6][C:7]1[CH:12]=[C:11]([N:13]2[C:17](=[O:18])[C@H:16]3[CH2:19][C@@H:20](O)[CH2:21][N:15]3[C:14]2=[O:23])[C:10]([F:24])=[CH:9][C:8]=1[Cl:25])(=[O:5])=[O:4].CN(C=O)C.S(Cl)([Cl:33])=O>C1(C)C=CC=CC=1>[Cl:1][CH2:2][S:3]([NH:6][C:7]1[CH:12]=[C:11]([N:13]2[C:17](=[O:18])[C@H:16]3[CH2:19][C@H:20]([Cl:33])[CH2:21][N:15]3[C:14]2=[O:23])[C:10]([F:24])=[CH:9][C:8]=1[Cl:25])(=[O:5])=[O:4]

Participants

Conditions

Temperature: 105 °C

Procedure

To a stirred suspension of the title compound of Example 1, Step G (3.3 g, 8 mmol) in 25 mL toluene and 0.02 g DMF was added at 80° C. thionyl chloride (1.31 g, 11 mmol) over a period of 15 minutes. The suspension was stirred at the same temperature for 2 h and at 105° C. for 30 minutes. After cooling to room temperature, the organic layer was washed with water, dried, and the solvent was evaporated under reduced pressure to yield the title compound of Step A, a compound of this invention, in quantitative yield as a crude powdery product melting at 169-170° C. 1H NMR (CDCl3) δ 7.64 (d, 1H), 7.36 (d, 1H), 7.20 (br s, 1H), 4.78 (m, 2H), 4.56 (s, 2H), 4.24 (dd, 1H), 3.62 (dd, 1H), 2.62 (m, 1H), 2.38 (m, 1H).

Workup

temperatureAfter cooling to room temperature
washthe organic layer was washed with water
customdried
customthe solvent was evaporated under reduced pressure

Sources & evidence

ORD record: ord-bc80c3b99c084d1eb9e671b9caeadfd3
Source dataset: uspto-grants-2000_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06060432

Reaction notes

Loading…