p-Toluenesulfonic acid monohydrate → 4-(9'-cyclopentyl-5'-methyl-6'-oxo-5',6',8',9'-tetrahydrospiro[cyclopropane-1,7'-pyrimido[5,4-b][1,4]diazepine]-2'-ylamino)-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamide

HRID 2234331Notes

Reaction equation

HRID 2234331 reaction equation
Cl[C:2]1[N:3]=[CH:4][C:5]2[N:6]([CH3:21])[C:7](=[O:20])[C:8]3([CH2:19][CH2:18]3)[CH2:9][N:10]([CH:13]3[CH2:17][CH2:16][CH2:15][CH2:14]3)[C:11]=2[N:12]=1.[NH2:22][C:23]1[C:39]([O:40][CH3:41])=[CH:38][C:26]([C:27]([NH:29][CH:30]2[CH2:35][CH2:34][N:33]([CH2:36][CH3:37])[CH2:32][CH2:31]2)=[O:28])=[C:25]([F:42])[CH:24]=1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1>CC(C)CC(O)C.CO.O>[CH:13]1([N:10]2[CH2:9][C:8]3([CH2:19][CH2:18]3)[C:7](=[O:20])[N:6]([CH3:21])[C:5]3[CH:4]=[N:3][C:2]([NH:22][C:23]4[C:39]([O:40][CH3:41])=[CH:38][C:26]([C:27]([NH:29][CH:30]5[CH2:35][CH2:34][N:33]([CH2:36][CH3:37])[CH2:32][CH2:31]5)=[O:28])=[C:25]([F:42])[CH:24]=4)=[N:12][C:11]2=3)[CH2:17][CH2:16][CH2:15][CH2:14]1

Participants

7

Reactant 3

HCID 521998p-Toluenesulfonic acid monohydrateHCID 579699392-chloro-9-cyclopentyl-8,9-dihydro-5-methylspiro[5H-pyrimido[4,5-b][1,4]diazepine-7,1'-cyclopropan]-6(7H)-one2×HCID 686817954-amino-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamide2×

Product 1

HCID 686833834-(9'-cyclopentyl-5'-methyl-6'-oxo-5',6',8',9'-tetrahydrospiro[cyclopropane-1,7'-pyrimido[5,4-b][1,4]diazepine]-2'-ylamino)-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamideYield 39%

Reagents, catalysts & solvents 3

HCID 887MethanolSolvent2×HCID 962WaterSolventHCID 79104-Methyl-2-PentanolSolvent

Conditions

Temperature
160 °C

Procedure

2′-chloro-9′-cyclopentyl-5′-methyl-8′,9′-dihydrospiro[cyclopropane-1,7′-pyrimido[5,4-b][1,4]diazepin]-6′(5′H)-one (Intermediate 130; 121 mg, 0.39 mmol) and 4-amino-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamide (Intermediate 205; 116 mg, 0.39 mmol) were taken up in 4-methyl-2-pentanol (4 mL) and p-toluenesulphonic acid monohydrate (150 mg, 0.79 mmol) added. The reaction mixture was heated at 160° C. by microwave irradiation for 1 hour. The cooled reaction mixture was poured into a mixture of methanol & water (5:2 v/v, 7 mL) and the resultant solution loaded onto an SCX-3 cartridge (5 g), which had been pre-wet with methanol. The cartridge was washed through with methanol (40 mL) and eluted with 2M ammonia in methanol (30 mL). The ammoniacal solution was evaporated to give an amber gum afforded which was purified by base modified reverse phase preparative HPLC which was re-purified by flash chromatography on a silica column eluting with 2.5-10% ammonia/methanol in DCM. Product containing fractions were combined and evaporated and the residue triturated with diethyl ether and resultant solid dried under vacuum, at 60° C., for 3 hours to yield the title compound as a flocculent white solid (86 mg, 39%)

Workup

  1. customThe cooled reaction mixture
  2. washThe cartridge was washed through with methanol (40 mL)
  3. washeluted with 2M ammonia in methanol (30 mL)
  4. customThe ammoniacal solution was evaporated
  5. customto give an amber gum
  6. customafforded which
  7. customwas purified by base modified reverse phase preparative HPLC which
  8. customwas re-purified by flash chromatography on a silica column
  9. washeluting with 2.5-10% ammonia/methanol in DCM
  10. additionProduct containing fractions
  11. customevaporated
  12. customthe residue triturated with diethyl ether
  13. customresultant solid dried under vacuum, at 60° C., for 3 hours

Sources & evidence

ORD record
ord-53fa898cbeec4fd990a67277a89051de
Source dataset
uspto-grants-2010_05
Patent number
US07709471B2

Reaction notes

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