(2-ethylphenyl)methanesulfonyl chloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5-[4-(Methylamino)phenyl]-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione (40 mg, 0.121 mmol) obtained in Example 198, (1), and 2-ethylbenzylsulfonyl chloride (132 mg, 0.605 mmol) were treated by heating in pyridine (1.0 mL). After the disappearance of the starting materials was confirmed, the same treatment as that of Example 145 was performed to obtain the title compound (10 mg, yield 16%) as white crystals.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5-[4-(Methylamino)phenyl]-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione (40 mg, 0.121 mmol) obtained in Example 198, (1), and 2-ethylbenzylsulfonyl chloride (132 mg, 0.605 mmol) were treated by heating in pyridine (1.0 mL). After the disappearance of the starting materials was confirmed, the same treatment as that of Example 145 was performed to obtain the title compound (10 mg, yield 16%) as white crystals.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5-[4-(Methylamino)phenyl]-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione (40 mg, 0.121 mmol) obtained in Example 198, (1), and 2-ethylbenzylsulfonyl chloride (132 mg, 0.605 mmol) were treated by heating in pyridine (1.0 mL). After the disappearance of the starting materials was confirmed, the same treatment as that of Example 145 was performed to obtain the title compound (10 mg, yield 16%) as white crystals.