Phenyl isocyanate → HCID 71657159, compound

HRID 1049691Notes

Reaction equation

[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:14](=[O:15])[CH2:13][C:12](=[O:16])[NH:11][C:10]3[C:17]4[C:22]([CH:23]=[CH:24][C:9]2=3)=[CH:21][CH:20]=[CH:19][CH:18]=4)=[CH:4][CH:3]=1.[C:25]1([N:31]=[C:32]=[O:33])[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1>O1CCCC1>[O:16]=[C:12]1[NH:11][C:10]2[C:17]3[C:22]([CH:23]=[CH:24][C:9]=2[N:8]([C:5]2[CH:6]=[CH:7][C:2]([NH:1][C:32]([NH:31][C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[O:33])=[CH:3][CH:4]=2)[C:14](=[O:15])[CH2:13]1)=[CH:21][CH:20]=[CH:19][CH:18]=3

Participants

Conditions

Temperature: 65 °C

Procedure

A suspension of 5-(4-aminophenyl)-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione (32 mg, 0.10 mmol) obtained in Example 1, (3) in anhydrous tetrahydrofuran (10 mL) was added with phenyl isocyanate (27 μL, 0.25 mmol), the mixture was refluxed by heating at 65° C. for 4 hours. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol=50/1) to obtain the title compound (9 mg, yield 21%) as white powder.

Workup

temperaturethe mixture was refluxed
customThe solvent was evaporated under reduced pressure
customthe residue was purified by silica gel column chromatography (chloroform/methanol=50/1)

Sources & evidence

ORD record: ord-1a3a6ba56011413db8084e1129484f6b
Source dataset: uspto-grants-2016_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09382236B2

Reaction notes

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