[OH:1][CH:2]([C:4]1[N:5]=[C:6]([CH2:51][CH2:52][CH3:53])[N:7]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[C:27]3[N:31](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[N:30]=[N:29][N:28]=3)=[CH:17][CH:16]=2)[C:8]=1[C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH3:3]>C(O)(=O)C>[OH:1][CH:2]([C:4]1[N:5]=[C:6]([CH2:51][CH2:52][CH3:53])[N:7]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[C:27]3[NH:31][N:30]=[N:29][N:28]=3)=[CH:17][CH:16]=2)[C:8]=1[C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH3:3]Following a procedure similar to that described in Example 35(c), 1.23 g of ethyl 4-(1-hydroxyethyl)-2-propyl-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate [prepared as described in step (b) above] were treated with 75% v/v aqueous acetic acid, to give 0.82 g of the title compound as an amorphous solid.
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