Hydrazine → HCID 71555850, compound

HRID 339972Notes

Reaction equation

[CH3:1][N:2]1[C:6]([C:7]2[CH:8]=[C:9]3[C:13](=[CH:14][CH:15]=2)[C:12](=[O:16])[N:11]([C@@H:17]([CH2:30][C:31]2[CH:36]=[C:35]([F:37])[CH:34]=[C:33]([F:38])[CH:32]=2)[CH2:18][N:19]2C(=O)C4C(=CC=CC=4)C2=O)[CH2:10]3)=[CH:5][CH:4]=[N:3]1.NN>CO.O1CCCC1>[NH2:19][CH2:18][C@@H:17]([N:11]1[CH2:10][C:9]2[C:13](=[CH:14][CH:15]=[C:7]([C:6]3[N:2]([CH3:1])[N:3]=[CH:4][CH:5]=3)[CH:8]=2)[C:12]1=[O:16])[CH2:30][C:31]1[CH:32]=[C:33]([F:38])[CH:34]=[C:35]([F:37])[CH:36]=1

Participants

Conditions

Temperature: 50 °C

Procedure

The product of Step D (0.72 g, 1.41 mmol) was dissolved in methanol (4 mL) and tetrahydrofuran (4 mL). To the resulting solution was added hydrazine (2 mL, 60 mmol). The solution was stirred at 50° C. for 2 h. The reaction mixture was concentrated under reduced pressure and the residue was purified by combi-flash chromatography eluting with MeOH/EtOAc (20-60%). The product was further purified by prep.-LC/MS (pH=10). The purification afforded 210 mg (39.0% yield) of the final product as a white solid. LC/MS found: 383.1 (M+1)+; 1H NMR (300 MHz, DMSO-d6) δ: 7.9 (d, J=13.8 Hz, 2H), 7.58 (dd, J1=7.9 Hz, J2=1.1 Hz, 1H), 7.48 (d, J=1.9 Hz, 1H), 6.96 (m, 3H), 6.45 (d, J=1.9 Hz, 1H), 4.47 (s, 2H), 4.41 (m, 1H), 3.86 (s, 3H), 3.04 (dd, J1=14.3 Hz, J2=4.8 Hz, 1H), 2.89 (dd, J1=14.0 Hz, J2=3.9 Hz, 1H), 2.85 (d, J=6.80 Hz, 2H).

Workup

concentrationThe reaction mixture was concentrated under reduced pressure
customthe residue was purified by combi-flash chromatography
washeluting with MeOH/EtOAc (20-60%)
customThe product was further purified by prep.-LC/MS (pH=10)
customThe purification

Sources & evidence

ORD record: ord-a155433b5b63486f94e48ae03c5222c7
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08895571B2

Reaction notes

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