Diethyl Ether → HCID 67121030, compound

HRID 1395950Notes

Reaction equation

HRID 1395950 reaction equation
[O:1]=[C:2]1[CH:6]=[CH:5][C:4](=[O:7])[N:3]1[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][C:13]([NH:15][C@H:16]([C:20]([NH:22][C@H:23]([C:31]([NH:33][C:34]1[CH:39]=[CH:38][C:37]([CH2:40][O:41][C:42]([N:44]2[CH2:49][CH2:48][N:47](C(OC(C)(C)C)=O)[CH2:46][CH2:45]2)=[O:43])=[CH:36][CH:35]=1)=[O:32])[CH2:24][CH2:25][CH2:26][NH:27][C:28](=[O:30])[NH2:29])=[O:21])[CH:17]([CH3:19])[CH3:18])=[O:14].FC(F)(F)C(O)=O.C(OCC)C>ClCCl>[O:1]=[C:2]1[CH:6]=[CH:5][C:4](=[O:7])[N:3]1[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][C:13]([NH:15][C@H:16]([C:20]([NH:22][C@H:23]([C:31]([NH:33][C:34]1[CH:35]=[CH:36][C:37]([CH2:40][O:41][C:42]([N:44]2[CH2:45][CH2:46][NH:47][CH2:48][CH2:49]2)=[O:43])=[CH:38][CH:39]=1)=[O:32])[CH2:24][CH2:25][CH2:26][NH:27][C:28](=[O:30])[NH2:29])=[O:21])[CH:17]([CH3:19])[CH3:18])=[O:14]

Participants

5

Reactant 3

HCID 3283Diethyl EtherHCID 6422Trifluoroacetic acidHCID 67121027HCID 67121027, compound

Product 1

HCID 67121030HCID 67121030, compoundYield 104.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Step 2 The intermediate 59 (22.0 mg) was treated with trifluoroacetic acid (327 mg, 2.87 mmol) in anhydrous dichloromethane (0.12 ml). The reaction mixture was stirred at room temperature for 15 minutes, until disappearance of the starting material (HPLC-MS analysis). After that, the reaction mixture was treated with diethyl ether (20 ml) and the residue thus obtained was rinsed with diethyl ether (2×10 ml): the product N-[6-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanoyl]-L-valyl-N5-carbamoyl-N-(4-{[(piperazin-1-ylcarbonyl)oxy]methyl}phenyl)-L-ornithinamide 60 (white wax, 20.0 mg) was thus isolated and used without further purification in the next step. MS (ESI): 685 [M+H]+. Retention time=2.97 min (method 1).

Workup

  1. customthe residue thus obtained
  2. washwas rinsed with diethyl ether (2×10 ml)

Sources & evidence

ORD record
ord-2d2f0e73bf4a48118680b397826f2c2c
Source dataset
uspto-grants-2014_12
Patent number
US08900589B2

Reaction notes

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