Diethyl Ether → 4-Methyl-[1,2,3]thiadiazole-5-carboxylic acid (6-oxo-2-phenyl-5,6-dihydro-1h-[1,2]diazepino[4,5,6-cd]indol-8-yl)-amide

HRID 1064106Notes

Reaction equation

HRID 1064106 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:20](=[O:21])[NH:19][N:18]=[CH:17][C:6]3=[C:7]([C:11]4[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=4)[NH:8][C:9]([CH:10]=1)=[C:5]23.[CH3:22][C:23]1[N:24]=[N:25][S:26][C:27]=1[C:28](O)=[O:29].C(N(CC)CC)C.C(OCC)C>CN(C)C=O>[O:21]=[C:20]1[C:4]2[C:5]3[C:6](=[C:7]([C:11]4[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=4)[NH:8][C:9]=3[CH:10]=[C:2]([NH:1][C:28]([C:27]3[S:26][N:25]=[N:24][C:23]=3[CH3:22])=[O:29])[CH:3]=2)[CH:17]=[N:18][NH:19]1

Participants

6

Reactant 4

HCID 3283Diethyl EtherHCID 8471TriethylamineHCID 13819924-Methyl-1,2,3-thiadiazole-5-carboxylic acid2×HCID 1357740798-Amino-2-phenyl-1,5-dihydro-[1,2]diazepino[4,5,6-cd]indol-6-one

Product 1

HCID 1355437264-Methyl-[1,2,3]thiadiazole-5-carboxylic acid (6-oxo-2-phenyl-5,6-dihydro-1h-[1,2]diazepino[4,5,6-cd]indol-8-yl)-amideYield 32%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Preparation of example 16 from the title compound of Example 7 (15 mg, 0.054 mmol), 4-methyl-[1,2,3]thiadiazole-5-carboxylic acid (8 mg, 0.062 mmol), triethylamine (0.030 mL, 0.22 mmol), and O-7-azabenzotriazol-1-yl)-N,N,N′N′-tetramethyluronium hexafluorophosphate (25 mg, 0.065 mmol) in N,N-dimethylformamide (1.0 mL) was carried out analogously to Example 11. Additional 4-methyl-[1,2,3]thiadiazole-5-carboxylic acid (1.0 mg, 0.006 mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′N′-tetramethyluronium hexafluorophosphate (2.0 mg, 0.006 mmol) were added after c.a. 18 hours to drive the reaction to completion. Silica gel chromatography, also in an analogous manner, followed by diethyl ether trituration afforded the title compound (7 mg, 0.017 mmol) as a yellow powder in 32% yield.

Workup

  1. custom18 hours
  2. customthe reaction to completion

Sources & evidence

ORD record
ord-a92503279907435f80c45dd089437bb7
Source dataset
uspto-grants-2005_11
Patent number
US06967198B2

Reaction notes

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