Sulfuric Acid → 7-(4-fluorophenyl)-N2-(3-methoxy-4-(3-methyl-1H-1,2,4-triazol-1-yl)phenyl)-N4-methyl-6,7-dihydro-5H-cyclopenta(d)pyrimidine-2,4-diamine

HRID 475892

Reaction equation

Cl[C:2]1[N:3]=[C:4]([NH:18][CH3:19])[C:5]2[CH2:10][CH2:9][CH:8]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)[C:6]=2[N:7]=1.[CH3:20][O:21][C:22]1[CH:23]=[C:24]([CH:26]=[CH:27][C:28]=1[N:29]1[CH:33]=[N:32][C:31]([CH3:34])=[N:30]1)[NH2:25].OS(O)(=O)=O.C([O-])(O)=O.[Na+]>CN1CCCC1=O.O>[F:17][C:14]1[CH:15]=[CH:16][C:11]([CH:8]2[C:6]3[N:7]=[C:2]([NH:25][C:24]4[CH:26]=[CH:27][C:28]([N:29]5[CH:33]=[N:32][C:31]([CH3:34])=[N:30]5)=[C:22]([O:21][CH3:20])[CH:23]=4)[N:3]=[C:4]([NH:18][CH3:19])[C:5]=3[CH2:10][CH2:9]2)=[CH:12][CH:13]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To a solution of 2-chloro-7-(4-fluorophenyl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (Preparation Hh) (141.2 mg, 0.508 mmol) and 3-methoxy-4-(3-methyl-1H-1,2,4-triazol-1-yl)aniline (Preparation D) (208 mg, 1.017 mmol) in N-Methyl-2-pyrrolidinone (4067 μL) was added H2SO4 (43.4 μL, 0.813 mmol). The solution was heated to 100° C. When the reaction was complete, water and NaHCO3 were added. After extraction into CH2Cl2, the organic extracts were dried over MgSO4, filtered, and concentrated in vacuo. Applied the residue to SG and eluted with a EtOAc/Hex gradient, which yielded 7-(4-fluorophenyl)-N2-(3-methoxy-4-(3-methyl-1H-1,2,4-triazol-1-yl)phenyl)-N4-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine-2,4-diamine (Example 44).

Workup

extractionAfter extraction into CH2Cl2
dry with materialthe organic extracts were dried over MgSO4
filtrationfiltered
concentrationconcentrated in vacuo
washApplied the residue to SG and eluted with a EtOAc/Hex gradient, which

Sources & evidence

ORD record: ord-703d6d2a1ddb42ef9b8fab5727535276
Source dataset: uspto-grants-2014_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08637525B2

Linked notes

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