Acetic Anhydride → (R)-1-(4-acetoxy-3,5-dimethyl-benzyl)-2-oxo-2-[4-(tetrahydropyran-4-yl)-piperazin-1-yl]-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

HRID 491121Notes

Reaction equation

HRID 491121 reaction equation
[O:1]=[C:2]1[N:8]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C@H:18]([CH2:33][C:34]3[CH:39]=[C:38]([CH3:40])[C:37]([OH:41])=[C:36]([CH3:42])[CH:35]=3)[C:19](=[O:32])[N:20]3[CH2:25][CH2:24][N:23]([CH:26]4[CH2:31][CH2:30][O:29][CH2:28][CH2:27]4)[CH2:22][CH2:21]3)=[O:16])[CH2:11][CH2:10]2)[CH2:7][CH2:6][C:5]2[CH:43]=[CH:44][CH:45]=[CH:46][C:4]=2[NH:3]1.[C:47](OC(=O)C)(=[O:49])[CH3:48]>>[O:1]=[C:2]1[N:8]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C@H:18]([CH2:33][C:34]3[CH:39]=[C:38]([CH3:40])[C:37]([O:41][C:47](=[O:49])[CH3:48])=[C:36]([CH3:42])[CH:35]=3)[C:19](=[O:32])[N:20]3[CH2:21][CH2:22][N:23]([CH:26]4[CH2:31][CH2:30][O:29][CH2:28][CH2:27]4)[CH2:24][CH2:25]3)=[O:16])[CH2:11][CH2:10]2)[CH2:7][CH2:6][C:5]2[CH:43]=[CH:44][CH:45]=[CH:46][C:4]=2[NH:3]1

Participants

3

Reactant 2

HCID 7918Acetic AnhydrideHCID 11857998(R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-[4-(tetrahydropyran-4-yl)-piperazin-1-yl]-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Product 1

HCID 11857696(R)-1-(4-acetoxy-3,5-dimethyl-benzyl)-2-oxo-2-[4-(tetrahydropyran-4-yl)-piperazin-1-yl]-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Procedure

A solution of 42 mg (0.07 mmol) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-[4-(tetrahydropyran-4-yl)-piperazin-1-yl]-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate (Example 7i) in 5 mL acetic anhydride was heated to 50° C. for 2 h. The mixture was evaporated down i.vac. and the residue was purified by HPLC. The fractions containing the product were combined and lyophilised.

Workup

  1. customThe mixture was evaporated down i.vac
  2. customand the residue was purified by HPLC
  3. additionThe fractions containing the product

Sources & evidence

ORD record
ord-f2594c7a2c51414492c9dc00f7d9a1f6
Source dataset
uspto-grants-2009_05
Patent number
US07528129B2

Reaction notes

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