Hydrochloric Acid → 2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yloxy]-2-methyl-propionic acid

HRID 2044658Notes

Reaction equation

C([O:3][C:4](=[O:31])[C:5]([O:8][C:9]1[N:30]=[CH:29][C:12]2[C:13]3[N:17]([CH2:18][CH2:19][O:20][C:11]=2[CH:10]=1)[CH:16]=[C:15]([C:21]1[N:22]([CH:26]([CH3:28])[CH3:27])[N:23]=[CH:24][N:25]=1)[N:14]=3)([CH3:7])[CH3:6])C.O.O.[OH-].[Li+].Cl>CO>[CH:26]([N:22]1[C:21]([C:15]2[N:14]=[C:13]3[N:17]([CH2:18][CH2:19][O:20][C:11]4[CH:10]=[C:9]([O:8][C:5]([CH3:7])([CH3:6])[C:4]([OH:31])=[O:3])[N:30]=[CH:29][C:12]=43)[CH:16]=2)=[N:25][CH:24]=[N:23]1)([CH3:28])[CH3:27]

Participants

Conditions

Temperature: 50 °C

Procedure

To a solution of 2-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yloxy]-2-methyl-propionic acid ethyl ester (103 mg, 0.24 mmol) in methanol (5 mL) was added water (0.5 mL) and lithium hydroxide monohydrate (19 mg, 0.48 mmol). The reaction mixture was heated at 50° C. for 16 h then HCl (1N, aq.) added until pH˜4. The reaction mixture was concentrated in vacuo to give 2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yloxy]-2-methyl-propionic acid as a yellow solid. LCMS: RT=2.88 min, [M+H]+=399

Workup

concentrationThe reaction mixture was concentrated in vacuo

Sources & evidence

ORD record: ord-fa85bd0d1a984b778df2c537cad0a3dd
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08586574B2

Reaction notes

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