5-(N-phenylmethoxycarbonylcarbamimidoyl)-1-benzofuran-2-carboxylic acid → HCID 178451020, compound

HRID 1682686Notes

Reaction equation

HRID 1682686 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]([C:14]1[CH:15]=[CH:16][C:17]2[O:21][C:20]([C:22](O)=[O:23])=[CH:19][C:18]=2[CH:25]=1)=[NH:13])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:26][C@H:27]1[CH2:32][CH2:31][C@H:30]([CH2:33][CH2:34][C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:29][CH2:28]1>>[CH2:1]([O:8][C:9]([NH:11][C:12]([C:14]1[CH:15]=[CH:16][C:17]2[O:21][C:20]([C:22]([NH:26][C@H:27]3[CH2:28][CH2:29][C@H:30]([CH2:33][CH2:34][C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH2:32]3)=[O:23])=[CH:19][C:18]=2[CH:25]=1)=[NH:13])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

3

Reactant 2

HCID 1403812485-(N-phenylmethoxycarbonylcarbamimidoyl)-1-benzofuran-2-carboxylic acidHCID 178451019HCID 178451019, compound

Product 1

HCID 178451020HCID 178451020, compoundYield 511.3%

Procedure

In the same manner as in Example 15 (3), 5-(benzyloxycarbonylamidino)-2-benzofurancarboxylic acid (3.98 g, 11.8 mmol) and t-butyl trans-3-(4-aminocyclohexyl)propionate (2.70 g, 1 1.8 mmol) were condensed to give 5.04 g of t-butyl trans-3-[4-[[5-(benzyloxycarbonylamidino)-2-benzofuranyl]carbonylamino]cyclohexyl]propionate as a colorless solid (78%). In the same manner as in Example 85, this solid (4.90 g, 8.95 mmol) was subjected to hydrogen reduction to give 3.52 g of compound (161) as a colorless solid (95%), which was treated with methanesulfonic acid (0.82 g, 8.52 mmol) in tetrahydrofuran solvent to give 3.82 g of methanesulfonate of compound (161) as a colorless solid (88%).

Workup

  1. customcondensed

Sources & evidence

ORD record
ord-17dec498d8064d44a2000f00a441054b
Source dataset
uspto-grants-1997_06
Patent number
US05635527

Reaction notes

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