Disilathiane, 1,1,1,3,3,3-hexamethyl- → 3-[7-(4-Fluoro-phenyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-thiobenzamide
Reaction equation
N[C@H](C(O)=O)C([SH:6])(C)C.C[Si](C)(C)S[Si](C)(C)C.C[O-].[Na+].[F:22][C:23]1[CH:28]=[CH:27][C:26]([C:29]2[CH:48]=[CH:47][C:32]3[N:33]=[C:34]([C:39]4[CH:40]=[C:41]([CH:44]=[CH:45][CH:46]=4)[C:42]#[N:43])[CH2:35][C:36](=[O:38])[NH:37][C:31]=3[CH:30]=2)=[CH:25][CH:24]=1>CN1CCN(C)C1=O.O>[F:22][C:23]1[CH:24]=[CH:25][C:26]([C:29]2[CH:48]=[CH:47][C:32]3[N:33]=[C:34]([C:39]4[CH:40]=[C:41]([CH:44]=[CH:45][CH:46]=4)[C:42]([NH2:43])=[S:6])[CH2:35][C:36](=[O:38])[NH:37][C:31]=3[CH:30]=2)=[CH:27][CH:28]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
Preparation of 4-oxo-4,5-dihydro-3H-benzo [b][1,4]diazepin-2-yl]-thiobenzamides (according to Pen-Yuan Lin et al. Synthesis 1992, 1219]: To a solution of hexamethyldisilthiane (1.45 g, 8.0 mmol) in 1,3-dimethyl-2-imidazolidinone (8 mL) was added at 23° C. sodium methoxide (0.31 g, 6.8 mmol). The mixture was stirred for 5 min. and the blue solution formed was then added to a solution of 3-[7-(4-fluoro-phenyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-benzonitrile (Example 57) (1.42 g, 4 mmol) in 1,3-dimethyl-imidazolidinone (12 mL). The mixture was stirred for 3 h at 23° C. and then poured into water (100 mL). Stirring was continued for 0.5 h and the precipitate was isolated by filtration and triturated with ethyl acetate (50 mL) to give the title compound as light yellow solid (1.38 g).
Workup
- customthe blue solution formed
- stirringThe mixture was stirred for 3 h at 23° C.
- stirringStirring
- waitwas continued for 0.5 h
- customthe precipitate was isolated by filtration
- customtriturated with ethyl acetate (50 mL)
Sources & evidence
- ORD record
- ord-33a0ec329b5844f7aa3c23be5072917b
- Source dataset
- uspto-grants-2003_01
- Patent number
- US06509328B1
Reaction notes
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