Hydrochloric Acid → 2-((8-(Benzyloxy)-5-(4-(4-(tert-butoxycarbonylamino)butyl)piperazin-1-yl)-1,6-naphthyridine-7-carboxamido)methyl)-5-fluorobenzoic acid

HRID 455318Notes

Reaction equation

HRID 455318 reaction equation
[CH2:1]([O:8][C:9]1[C:10]([C:37]([NH:39][CH2:40][C:41]2[CH:51]=[CH:50][C:49]([F:52])=[CH:48][C:42]=2[C:43]([O:45]CC)=[O:44])=[O:38])=[N:11][C:12]([N:19]2[CH2:24][CH2:23][N:22]([CH2:25][CH2:26][CH2:27][CH2:28][NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:21][CH2:20]2)=[C:13]2[C:18]=1[N:17]=[CH:16][CH:15]=[CH:14]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O[Li].O.Cl>C1COCC1.O>[CH2:1]([O:8][C:9]1[C:10]([C:37]([NH:39][CH2:40][C:41]2[CH:51]=[CH:50][C:49]([F:52])=[CH:48][C:42]=2[C:43]([OH:45])=[O:44])=[O:38])=[N:11][C:12]([N:19]2[CH2:24][CH2:23][N:22]([CH2:25][CH2:26][CH2:27][CH2:28][NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:21][CH2:20]2)=[C:13]2[C:18]=1[N:17]=[CH:16][CH:15]=[CH:14]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 68009254Ethyl 2-((8-(benzyloxy)-5-(4-(4-(tert-butoxycarbonylamino)butyl)-piperazin-1-yl)-1,6-naphthyridine-7-carboxamido)methyl)-5-fluorobenzoate

Product 1

HCID 680094192-((8-(Benzyloxy)-5-(4-(4-(tert-butoxycarbonylamino)butyl)piperazin-1-yl)-1,6-naphthyridine-7-carboxamido)methyl)-5-fluorobenzoic acid

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

Ethyl 2-((8-(benzyloxy)-5-(4-(4-(tert-butoxycarbonylamino)butyl)piperazin-1-yl)-1,6-naphthyridine-7-carboxamido)methyl)-5-fluorobenzoate (Example 4.3; 1.4 mmol) was dissolved in THF (4.5 ml) and water (4.5 ml). Solid LiOH hydrate (1.6 mmol) was added at room temperature. The reaction mixture was stirred for 24 h, after which 2N HCl was added until pH=6-7 was reached. The mixture was extracted twice with EtOAc and the combined organic fractions dried with magnesium sulfate. The crude material containing the title compound (0.27 gr) was used as such in the next step.

Workup

  1. extractionThe mixture was extracted twice with EtOAc
  2. dry with materialthe combined organic fractions dried with magnesium sulfate
  3. additionThe crude material containing the title compound (0.27 gr)

Sources & evidence

ORD record
ord-b6ffb7ff86a04c6d8d62b87173ddbb42
Source dataset
uspto-grants-2013_07
Patent number
US08497270B2

Reaction notes

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