Lithium Hydroxide → (R)-2-(4-amino-3-methyl-5-nitro-phenyl)-1-carboxy-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

HRID 642818Notes

Reaction equation

HRID 642818 reaction equation
[Li+].[OH-:2].[O:3]=[C:4]1[N:10]([CH:11]2[CH2:16][CH2:15][N:14]([C:17]([O:19][C@@H:20](OC)[C:21](=C=O)[C:22]3[CH:27]=[C:26]([N+:28]([O-:30])=[O:29])[C:25]([NH2:31])=[C:24]([CH3:32])[CH:23]=3)=[O:18])[CH2:13][CH2:12]2)[CH2:9][CH2:8][C:7]2[CH:37]=[CH:38][CH:39]=[CH:40][C:6]=2[NH:5]1.C1[CH2:45][O:44]CC1>O>[O:3]=[C:4]1[N:10]([CH:11]2[CH2:12][CH2:13][N:14]([C:17]([O:19][C@@H:20]([C:45]([OH:44])=[O:2])[CH2:21][C:22]3[CH:27]=[C:26]([N+:28]([O-:30])=[O:29])[C:25]([NH2:31])=[C:24]([CH3:32])[CH:23]=3)=[O:18])[CH2:15][CH2:16]2)[CH2:9][CH2:8][C:7]2[CH:37]=[CH:38][CH:39]=[CH:40][C:6]=2[NH:5]1

Participants

5

Reactant 3

HCID 3939Lithium HydroxideHCID 8028TetrahydrofuranHCID 86601628(R)-2-(4-amino-3-methyl-5-nitro-phenyl)-1-methoxy-carbonyl-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Product 1

HCID 68609726(R)-2-(4-amino-3-methyl-5-nitro-phenyl)-1-carboxy-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A solution of 120 mg (5.0 mmol) LiOH in 5 mL water was metered into a solution of 1.0 g (1.8 mmol) (R)-2-(4-amino-3-methyl-5-nitro-phenyl)-1-methoxy-carbonyl-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate in 10 mL THF, the reaction solution was stirred for 4 h at RT and then evaporated down i.vac. The residue was combined with 30 mL water, washed with 30 mL diethyl ether, acidified with 4 M HCl while cooling with an ice bath and stirred for 30 min at RT. The precipitate was filtered off, washed with water and dried.

Workup

  1. customevaporated down i.vac
  2. washwashed with 30 mL diethyl ether
  3. temperaturewhile cooling with an ice bath
  4. stirringstirred for 30 min at RT
  5. filtrationThe precipitate was filtered off
  6. washwashed with water
  7. customdried

Sources & evidence

ORD record
ord-ff1fdb87989442bc99d42a9b8fefddda
Source dataset
uspto-grants-2010_04
Patent number
US07696195B2

Reaction notes

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