1,1'-Carbonyldiimidazole → HCID 66577465, compound

HRID 1529129Notes

Reaction equation

[OH:1][C@@H:2]([C:13]1[C:14]([CH3:36])=[N:15][O:16][C:17]=1[C:18]1[CH:23]=[CH:22][C:21]([C:24]2[CH:29]=[CH:28][C:27]([C:30]3([C:33]([OH:35])=O)[CH2:32][CH2:31]3)=[CH:26][CH:25]=2)=[CH:20][CH:19]=1)[CH2:3][O:4][C@@H:5]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[CH3:6].C(N1C=CN=C1)(N1C=CN=C1)=O.N12CCCN=C1CCCCC2.[CH3:60][S:61]([NH2:64])(=[O:63])=[O:62]>C1COCC1>[OH:1][C@@H:2]([C:13]1[C:14]([CH3:36])=[N:15][O:16][C:17]=1[C:18]1[CH:23]=[CH:22][C:21]([C:24]2[CH:29]=[CH:28][C:27]([C:30]3([C:33]([NH:64][S:61]([CH3:60])(=[O:63])=[O:62])=[O:35])[CH2:31][CH2:32]3)=[CH:26][CH:25]=2)=[CH:20][CH:19]=1)[CH2:3][O:4][C@@H:5]([C:7]1[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=1)[CH3:6]

Participants

Conditions

Temperature: 50 °C

Procedure

1-(4′-{4-[(S)-1-Hydroxy-2-((R)-1-phenyl-ethoxy)-ethyl]-3-methyl-isoxazol-5-yl}-biphenyl-4-yl)-cyclopropanecarboxylic acid (0.022 g, 0.044 mmol) was dissolved in THF (3 mL) and carbonyldiimidazole (0.022 g, 0.14 mmol) was added. After 1.5 hours an additional portion of carbonyldiimidazole (0.011 g) was added. The reaction stirred for 40 minutes then carbonyldiimidazole (0.044 g) was added. The reaction stirred overnight then carbonyldiimidazole (0.044 g) was added and the reaction was heated to 50° C. After heating for 3 hours, 1,8-diazabicyclo[5.4.0]undec-7-ene (0.100 mL, 0.67 mmol) and methanesulfonamide (0.050 g, 0.53 mmol) were added and the reaction was heated to 100° C. The reaction was monitored by analytical LCMS and when it was complete it was cooled and purified on preparatory HPLC to afford the title compound.

Workup

stirringThe reaction stirred overnight
temperatureAfter heating for 3 hours
temperaturethe reaction was heated to 100° C
temperaturewas cooled
custompurified on preparatory HPLC

Sources & evidence

ORD record: ord-099b826e639e43c6add8cd16e6e427ad
Source dataset: uspto-grants-2015_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09090573B2

Reaction notes

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