Dicyclohexylcarbodiimide → HCID 15340829, compound

HRID 2211556Notes

Reaction equation

HRID 2211556 reaction equation
[F:1][C:2]1[CH:19]=[CH:18][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][NH2:17])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1.[F:20][C:21]1[CH:29]=[CH:28][CH:27]=[C:23]([C:24](O)=[O:25])[C:22]=1[C:30](O)=[O:31].C1(N=C=NC2CCCCC2)CCCCC1>ClCCl>[F:1][C:2]1[CH:19]=[CH:18][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][N:17]4[C:30](=[O:31])[C:22]5=[C:21]([F:20])[CH:29]=[CH:28][CH:27]=[C:23]5[C:24]4=[O:25])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1

Participants

5

Reactant 3

HCID 10868DicyclohexylcarbodiimideHCID 3453813-Fluorophthalic acidHCID 146998572-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethan-1-amine

Product 1

HCID 15340829HCID 15340829, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethylamine (2.37 gm, 8.98 mmoles), 3-fluorophthalic acid (1.82 gm, 9.9 moles) and dicyclohexylcarbodiimide (DCC, 5.5 gm, 26.7 mmoles, 2.6 eq) in dichloromethane (DCM, 250 ml) was stirred at room temperature for 18 hrs. The solids were filtered off. The organic solution was concentrated down. The residue was purified on a flash chromatography column (SiO2, 50 gm; eluted with 1% CH3OH:99% DCM, 1.4 liter; 2-6% CH3OH:DCM, 1 liter). The desired product thus obtained weighed 2.64 gm (71%) as an off-white solid. Recrystallization from hot ethanol gave 1.41 gm of white crystals, m.p.=142°-143° C.

Workup

  1. filtrationThe solids were filtered off
  2. concentrationThe organic solution was concentrated down
  3. customThe residue was purified on a flash chromatography column (SiO2, 50 gm; eluted with 1% CH3OH:99% DCM, 1.4 liter; 2-6% CH3OH:DCM, 1 liter)

Sources & evidence

ORD record
ord-a76f2295f1a043ed9086ae712483d54f
Source dataset
uspto-grants-2006_09
Patent number
USRE039265E1

Reaction notes

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