Formic Acid → (R)-1-(4-formyloxy-3,5-dimethyl-benzyl)-2-(4-morpholin-4-yl-piperidin-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

HRID 599755Notes

Reaction equation

HRID 599755 reaction equation
[C:1](OC(=O)C)(=[O:3])C.C(O)=O.[O:11]=[C:12]1[N:18]([CH:19]2[CH2:24][CH2:23][N:22]([C:25]([O:27][C@H:28]([CH2:43][C:44]3[CH:49]=[C:48]([CH3:50])[C:47]([OH:51])=[C:46]([CH3:52])[CH:45]=3)[C:29]([N:31]3[CH2:36][CH2:35][CH:34]([N:37]4[CH2:42][CH2:41][O:40][CH2:39][CH2:38]4)[CH2:33][CH2:32]3)=[O:30])=[O:26])[CH2:21][CH2:20]2)[CH2:17][CH2:16][C:15]2[CH:53]=[CH:54][CH:55]=[CH:56][C:14]=2[NH:13]1>C(Cl)Cl>[O:11]=[C:12]1[N:18]([CH:19]2[CH2:24][CH2:23][N:22]([C:25]([O:27][C@H:28]([CH2:43][C:44]3[CH:49]=[C:48]([CH3:50])[C:47]([O:51][CH:1]=[O:3])=[C:46]([CH3:52])[CH:45]=3)[C:29]([N:31]3[CH2:32][CH2:33][CH:34]([N:37]4[CH2:38][CH2:39][O:40][CH2:41][CH2:42]4)[CH2:35][CH2:36]3)=[O:30])=[O:26])[CH2:21][CH2:20]2)[CH2:17][CH2:16][C:15]2[CH:53]=[CH:54][CH:55]=[CH:56][C:14]=2[NH:13]1

Participants

5

Reactant 3

HCID 284Formic AcidHCID 7918Acetic AnhydrideHCID 23654987Bi-44370

Product 1

HCID 16123009(R)-1-(4-formyloxy-3,5-dimethyl-benzyl)-2-(4-morpholin-4-yl-piperidin-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 100 μL acetic anhydride and 1 mL formic acid in 3 mL DCM was stirred for 2 h at RT (formation of the mixed anhydride). Then 100 mg (0.16 mmol) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(4-morpholin-4-yl-piperidin-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate (Example 1.20a) were added and the reaction mixture was stirred for 2 h at RT. The reaction solution was evaporated down and the residue was again added to a solution of the mixed anhydride and stirred overnight at RT. 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 reaction solution was evaporated down
  2. additionthe residue was again added to a solution of the mixed anhydride
  3. stirringstirred overnight at RT
  4. customThe mixture was evaporated down i.vac
  5. customand the residue was purified by HPLC
  6. additionThe fractions containing the product

Sources & evidence

ORD record
ord-95f914c9f3cb4f1781b963f2d1a4a179
Source dataset
uspto-grants-2011_03
Patent number
US07897603B2

Reaction notes

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