Dimethylformamide → HCID 136348444, compound

HRID 1748775Notes

Reaction equation

[CH2:1]([N:3]1[C:7]2[NH:8][CH2:9][CH2:10][S:11][CH:12]([C:13]3[CH:21]=[CH:20][C:16]([C:17](O)=[O:18])=[CH:15][C:14]=3[CH3:22])[C:6]=2[C:5]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=2)=[N:4]1)[CH3:2].S(Cl)([Cl:31])=O.CN(C=O)C>C(Cl)Cl>[CH2:1]([N:3]1[C:7]2[NH:8][CH2:9][CH2:10][S:11][CH:12]([C:13]3[CH:21]=[CH:20][C:16]([C:17]([Cl:31])=[O:18])=[CH:15][C:14]=3[CH3:22])[C:6]=2[C:5]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=2)=[N:4]1)[CH3:2]

Participants

Conditions

Temperature: 50 °C

Procedure

To a mixture of 4-(1-ethyl-3-(pyridin-2-yl)-4,6,7,8-tetrahydro-1H-pyrazolo[3,4-e][1,4]thiazepin-4-yl)-3-methylbenzoic acid (2.0 g, 5.07 mmol, Preparation #V.1) and thionyl chloride (1.8 mL, 25.3 mmol) in DCM (20 mL) was added DMF (0.04 mL, 0.51 mmol) and stirred at about 50° C. for about 2 h. The reaction was cooled to ambient temperature and the solvent was removed under reduced pressure to give 4-(1-ethyl-3-(pyridin-2-yl)-4,6,7,8-tetrahydro-1H-pyrazolo[3,4-e][1,4]thiazepin-4-yl)-3-methylbenzoyl chloride (2.1 g, 5.09 mmol, 100%) as a brown solid. LC-MS (Table 1, Method k) Rt=1.97 min, m/z 409 (M+H)+ for MeOH quench.

Workup

temperatureThe reaction was cooled to ambient temperature
customthe solvent was removed under reduced pressure

Sources & evidence

ORD record: ord-47bdd204154a4c9ab285259d32c39d2c
Source dataset: uspto-grants-2015_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09150592B2

Reaction notes

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