Lithium hydroxide, monohydrate → (5-Methyl-2-oxo-1,3-dioxolen-4-yl)methyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazole-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate

HRID 265126Notes

Reaction equation

HRID 265126 reaction equation
[CH2:1]([C:3]1[N:4]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]3[N:34]([C:35]([C:48]4[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=4)([C:42]4[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=4)[C:36]4[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=4)[N:33]=[N:32][N:31]=3)=[CH:20][CH:19]=2)[C:5]([C:12]([O:14][CH2:15][CH3:16])=[O:13])=[C:6]([C:8]([OH:11])([CH3:10])[CH3:9])[N:7]=1)[CH3:2].O.[OH-].[Li+].Cl[CH2:58][C:59]1[O:60][C:61](=[O:65])[O:62]C=1C>>[CH2:1]([C:3]1[N:4]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]3[N:34]([C:35]([C:42]4[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=4)([C:48]4[CH:49]=[CH:50][CH:51]=[CH:52][CH:53]=4)[C:36]4[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=4)[N:33]=[N:32][N:31]=3)=[CH:20][CH:19]=2)[C:5]([C:12]([O:14][CH2:15][C:16]2[O:65][C:61](=[O:62])[O:60][C:59]=2[CH3:58])=[O:13])=[C:6]([C:8]([OH:11])([CH3:9])[CH3:10])[N:7]=1)[CH3:2]

Participants

4

Reactant 3

HCID 168937Lithium hydroxide, monohydrateHCID 98555184-(Chloromethyl)-5-methyl-1,3-dioxol-2-oneHCID 19036058Ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate

Product 1

HCID 19036185(5-Methyl-2-oxo-1,3-dioxolen-4-yl)methyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazole-5-yl)phenyl]phenyl}methylimidazole-5-carboxylateYield 48.8%

Procedure

Following a procedure similar to that described in Example 78(a), but using 2.25 g of ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazole-5-yl)-phenyl]phenyl}methylimidazole-5-carboxylate [prepared as described in Example 68 (a)] and using 203 mg of lithium hydroxide monohydrate for hydrolysis and 0.95 g of 4-chloromethyl-5-methyl-2-oxo-1,3-dioxolene (74% purity) for esterification, 1.23 g of the title compound was obtained as crystals, melting at 145° C.

Sources & evidence

ORD record
ord-a53bec04dd2b45619760559e25a72c4a
Source dataset
uspto-grants-1997_07
Patent number
US05646171

Reaction notes

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