Pyridinium chloride → HCID 131728688, compound

HRID 1363399Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:15]([C:16](=[O:18])[CH:17]=1)=[C:14]([O:19]C)[CH:13]=[C:12]([O:21]C)[C:11]=2[C@@H:23]1[CH2:27][CH2:26][N:25]([CH3:28])[C@H:24]1[C:29]([OH:31])=[O:30].Cl.N1C=CC=CC=1>O>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:15]([C:16](=[O:18])[CH:17]=1)=[C:14]([OH:19])[CH:13]=[C:12]([OH:21])[C:11]=2[C@@H:23]1[CH2:27][CH2:26][N:25]([CH3:28])[C@H:24]1[C:29]([OH:31])=[O:30]

Participants

Conditions

Temperature: 180 °C

Procedure

Compound of example 143 (0.25 g, 0.563 mmol) was treated with pyridine hydrochloride (2.5 g, 21 mmol) and the reaction mixture was further heated at 180° C. for 2 h. Water (1 mL) was added after completion of the reaction and reaction mixture was purified on HP-20 column using water as eluant, followed by methanol and water in the ratio 70:30 to obtain the title compound.

Workup

customafter completion of the reaction and reaction mixture
customwas purified on HP-20 column

Sources & evidence

ORD record: ord-7a7ac32131864cef9653cf10b7a1cd58
Source dataset: uspto-grants-2011_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07884127B2

Reaction notes

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