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ChemicalBook CAS DataBase List (R)-(7-Methyl-1,4-diazepan-1-yl)(5-Methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)Methanone
1030377-32-2

(R)-(7-Methyl-1,4-diazepan-1-yl)(5-Methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)Methanone synthesis

4synthesis methods
Suvorexant intermediate

1030377-31-1
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(R)-(7-Methyl-1,4-diazepan-1-yl)(5-Methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)Methanone

1030377-32-2
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Yield:-

Reaction Conditions:

with hydrogen;palladium(II) hydroxide/carbon in ethyl acetate; for 72 h;

Steps:

G (7R)-7-methyl-1-[5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoyl]-1,4-diazepane (G-2)

A round bottom flask containing a solution of 29.6 g (68.3 mmol) G-1 in 300 mL EtOAc and 200 ml MeOH was evacuated under reduced pressure and purged three times with an atmosphere of N2. To the flask was then added 2.4 g of 20% Pd(OH)2 on carbon. The flask was again evacuated under reduced pressure and purged three times with an atmosphere of N2, and then three times with H2. The reaction was stirred under an atmosphere of H2 for three days, then filtered through a pad of celite, rinsing with EtOAc followed by MeOH. The filtrate was concentrated to provide G-2 as a white foam. Data for G-2: LC/MS: rt=0.96 & 1.13 min (see two conformers under these conditions); m/z (M+H)=300.0 found; 300.2 required.

References:

US2008/132490,2008,A1 Location in patent:Page/Page column 16-17