Potassium Carbonate → {4-[4-(2-{Benzyl-[2-(4-benzyloxy-3-formylaminophenyl)-2-(R)-hydroxyethyl]amino}-ethoxy)phenyl]butyl}carbamic acid benzyl ester

HRID 1696831Notes

Reaction equation

HRID 1696831 reaction equation
[CH2:1]([O:8][C:9](=[O:32])[NH:10][CH2:11][CH2:12][CH2:13][CH2:14][C:15]1[CH:20]=[CH:19][C:18]([O:21][CH2:22][CH2:23][NH:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)=[CH:17][CH:16]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:33]([O:40][C:41]1[CH:46]=[CH:45][C:44]([C@@H:47]([OH:50])[CH2:48]Br)=[CH:43][C:42]=1[NH:51][CH:52]=[O:53])[C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1.C([O-])([O-])=O.[K+].[K+]>O1CCCC1>[CH2:1]([O:8][C:9](=[O:32])[NH:10][CH2:11][CH2:12][CH2:13][CH2:14][C:15]1[CH:16]=[CH:17][C:18]([O:21][CH2:22][CH2:23][N:24]([CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH2:48][C@@H:47]([C:44]2[CH:45]=[CH:46][C:41]([O:40][CH2:33][C:34]3[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=3)=[C:42]([NH:51][CH:52]=[O:53])[CH:43]=2)[OH:50])=[CH:19][CH:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 11142645(R)-N-[5-(2-Bromo-1-hydroxyethyl)-2-(phenylmethoxy)phenyl]formamideHCID 58100148{4-[4-(2-Benzylaminoethoxy)phenyl]butyl}carbamic acid benzyl ester

Product 1

HCID 58100114{4-[4-(2-{Benzyl-[2-(4-benzyloxy-3-formylaminophenyl)-2-(R)-hydroxyethyl]amino}-ethoxy)phenyl]butyl}carbamic acid benzyl esterYield 50.6%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Benzylamine 16 (619 mg, 1.43 mmol) was added to a suspension of bromoalcohol 5 (500 mg, 1.43 mmol) and K2CO3 (495 mg, 3.58 mmol) methanol (10 mL) and tetrahydrofuran (5 mL). The suspension was stirred at ambient temperature for 15 h, then heated to 55° C. for 75 h. The solid was vacuum filtered and the filtrate was concentrated under vacuum. The resulting oil was subjected to column chromatography eluting with 5-50% ethyl acetate in hexanes to afford the desired product 17 (508 mg, 5%) as an off-white solid: 1H NMR (500 MHz, CDCl3) δ 1.45-1.62 (m, 4H), 2.54 (t, 2H), 2.65-2.71 (m, 1H), 3.14-3.23 (m, 3H), 3.58-3.74 (m, 1H), 3.88-4.09 (m, 3H), 4.71 (br, 2H), 5.04-5.21 (m, 4H), 6.79-7.25 (m, 6H), 7.34-7.52 (m, 16H), 7.65-7.87 (m, 1H), 8.32-8.49 (m, 1H); m/z, (ESI) 702 [C43H47N3O6+H]+.

Workup

  1. temperatureheated to 55° C. for 75 h
  2. filtrationfiltered
  3. concentrationthe filtrate was concentrated under vacuum
  4. washeluting with 5-50% ethyl acetate in hexanes

Sources & evidence

ORD record
ord-1636d5e5f75a4ebf8019bf4e16a1255f
Source dataset
uspto-grants-2012_04
Patent number
US08163758B2

Reaction notes

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