Pyridine → HCID 21444366, compound

HRID 328288Notes

Reaction equation

HRID 328288 reaction equation
[Cl:1][C:2]1[N:11]=[C:10]2[C:5]([CH:6]=[CH:7][C:8]([N:12]3[CH:20]([OH:21])[C:19]4[C:14](=[CH:15][C:16]([C:22]([F:25])([F:24])[F:23])=[CH:17][CH:18]=4)[C:13]3=[O:26])=[N:9]2)=[CH:4][CH:3]=1.Cl.Cl[C:29]([N:31]1[CH2:36][CH2:35][N:34]([CH3:37])[CH2:33][CH2:32]1)=[O:30].C(N(CC)CC)C.N1C=CC=CC=1>C(Cl)Cl>[Cl:1][C:2]1[N:11]=[C:10]2[C:5]([CH:6]=[CH:7][C:8]([N:12]3[CH:20]([O:21][C:29]([N:31]4[CH2:36][CH2:35][N:34]([CH3:37])[CH2:33][CH2:32]4)=[O:30])[C:19]4[C:14](=[CH:15][C:16]([C:22]([F:24])([F:25])[F:23])=[CH:17][CH:18]=4)[C:13]3=[O:26])=[N:9]2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 1049PyridineHCID 8471TriethylamineHCID 30169344-Methylpiperazine-1-carbonyl chloride monohydrochlorideHCID 227547182-(7-Chloro-1,8-naphthyridin-2-yl)-3-hydroxy-6-trifluoromethyl-1-isoindolinone

Product 1

HCID 21444366HCID 21444366, compoundYield 73.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Following the procedure of Example 28, but starting from 2-(7-chloro-1,8-naphthyridin-2-yl)-3-hydroxy-6-trifluoromethyl-1-isoindolinone (4.8 g.), 1-chlorocarbonyl-4-methyl-piperazine hydrochloride (15.1 g.), triethylamine (14.2 cc., equivalent to 10.2 g.) and pyridine (66 cc.) in methylene chloride (250 cc.), a crude product (7.8 g.) is obtained, which is triturated with water (50 cc.). The solid obtained is filtered off and washed with water (30 cc.). After recrystallisation from isopropanol (240 cc.), 2-(7-chloro1,8-naphthyridin-2-yl)-3-(4-methyl-piperazinyl)carbonyloxy-6-trifluoromethyl-1-isoindolinone (4.7 g.) melting at 219° C is obtained.

Workup

  1. customa crude product (7.8 g.) is obtained
  2. customwhich is triturated with water (50 cc.)
  3. customThe solid obtained
  4. filtrationis filtered off
  5. washwashed with water (30 cc.)
  6. customAfter recrystallisation from isopropanol (240 cc.)

Sources & evidence

ORD record
ord-02ca71111948424b80d514902a0b2243
Source dataset
uspto-grants-1977_04
Patent number
US04016274

Reaction notes

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