Hydrochloric Acid → (S)-1-(5-(3-(2,6-dimethylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol hydrochloride

HRID 1523564Notes

Reaction equation

[CH3:1][C:2]1[C:7]([O:8][C:9]2[C:10]([NH:22][C:23]3[S:27][N:26]=[C:25]([C@H:28]4[CH2:32][O:31]C5(CCCCC5)[O:29]4)[N:24]=3)=[N:11][CH:12]=[C:13]([S:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=3)[CH:14]=2)=[CH:6][CH:5]=[C:4]([CH3:38])[N:3]=1.[ClH:39]>C(O)C>[ClH:39].[CH3:1][C:2]1[C:7]([O:8][C:9]2[C:10]([NH:22][C:23]3[S:27][N:26]=[C:25]([C@H:28]([OH:29])[CH2:32][OH:31])[N:24]=3)=[N:11][CH:12]=[C:13]([S:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=3)[CH:14]=2)=[CH:6][CH:5]=[C:4]([CH3:38])[N:3]=1

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of (S)—N-(3-(2,6-dimethylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-3-(1,4-dioxaspiro[4.5]decan-2-yl)-1,2,4-thiadiazol-5-amine (0.70 g, 1.3 mmol) in ethanol (20 mL) was added concentrated HCl (2.4 ml) and the reaction was heated to 80° C. for 2 hours. The reaction was concentrated and the material triturated with EtOH. The solid was further purified by reverse phase HPLC to yield pure product. The product was taken up in ethanol and HCl (2M in ether) was added. The mixture was stirred for 2 hours and concentrated in vacuo and dried in vacuo to yield the product as the HCl salt (73.2 mg, 12%). Mass Spectrum (apci) m/z=469.2 (M+H−HCl).

Workup

concentrationThe reaction was concentrated
customthe material triturated with EtOH
customThe solid was further purified by reverse phase HPLC
customto yield pure product
concentrationconcentrated in vacuo
customdried in vacuo

Sources & evidence

ORD record: ord-25cf25d460244836b0216ffa0337567f
Source dataset: uspto-grants-2015_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09079890B2

Reaction notes

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