Toluene → 3-[[5-ethyl-6-[4-(1,2,3,4-tetrahydro-1,8-naphthyridin-7-yl)-1-piperidinyl]-4-pyrimidinyl]amino]-N-(4-methoxy-benzenesulphonyl)alanine

HRID 729753Notes

Reaction equation

HRID 729753 reaction equation
CC([O:5][C:6](=[O:46])[C@H:7]([CH2:20][NH:21][C:22]1[C:27]([CH2:28][CH3:29])=[C:26]([N:30]2[CH2:35][CH2:34][CH:33]([C:36]3[N:45]=[C:44]4[C:39]([CH2:40][CH2:41][CH2:42][NH:43]4)=[CH:38][CH:37]=3)[CH2:32][CH2:31]2)[N:25]=[CH:24][N:23]=1)[NH:8][S:9]([C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1)(=[O:11])=[O:10])(C)C.FC(F)(F)C(O)=O.ClCCl.CO.O.C(O)(=O)C.C1(C)C=CC=CC=1>ClCCl>[CH2:28]([C:27]1[C:22]([NH:21][CH2:20][C@@H:7]([C:6]([OH:46])=[O:5])[NH:8][S:9]([C:12]2[CH:13]=[CH:14][C:15]([O:18][CH3:19])=[CH:16][CH:17]=2)(=[O:10])=[O:11])=[N:23][CH:24]=[N:25][C:26]=1[N:30]1[CH2:35][CH2:34][CH:33]([C:36]2[N:45]=[C:44]3[C:39]([CH2:40][CH2:41][CH2:42][NH:43]3)=[CH:38][CH:37]=2)[CH2:32][CH2:31]1)[CH3:29]

Participants

6

Reactant 4

HCID 1140TolueneHCID 6422Trifluoroacetic acidHCID 18914200Dichloromethane methanol acetic acid waterHCID 57832825(1,1-dimethylethyl) 3-[[5-ethyl-6-[4-(1,2,3,4-tetrahydro-1,8-naphthyridin-7-yl)-1-piperidinyl]-4-pyrimidinyl]amino]-N-(4-methoxy-benzenesulphonyl)alaninate

Product 1

HCID 578328363-[[5-ethyl-6-[4-(1,2,3,4-tetrahydro-1,8-naphthyridin-7-yl)-1-piperidinyl]-4-pyrimidinyl]amino]-N-(4-methoxy-benzenesulphonyl)alanineYield 85%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

55.8 mg (0.086 mmoles) of (1,1-dimethylethyl)3-[[5-ethyl-6-[4-(1,2,3,4-tetrahydro-1,8-naphthyridin-7-yl)-1-piperidinyl]-4-pyrimidinyl]amino]-N-(4-methoxy-benzenesulphonyl)alaninate in 5 ml of dichloromethane with 0.5 ml of trifluoroacetic acid is stirred at ambient temperature until the starting product disappears according to TLC (silicagel, eluent: CH2Cl2-MeOH-H2O—AcOH 85-15-2-2). Toluene is added and the reaction mixture is evaporated to dryness under reduced pressure (2 kPa). The residue is solubilized in the minimum amount of dichloromethane with a little methanol then poured into diisopropyl ether. The precipitate is filtered. 59.8 mg (Yield=85% expressed as ditrifluoroacetate) of expected product is obtained.

Workup

  1. customthe reaction mixture is evaporated to dryness under reduced pressure (2 kPa)
  2. additionthen poured into diisopropyl ether
  3. filtrationThe precipitate is filtered

Sources & evidence

ORD record
ord-bf91861d73f246d091d0bb327a6bc12b
Source dataset
uspto-grants-2009_09
Patent number
US07582640B2

Reaction notes

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