Triethylamine → 1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-phenylpiperidine-4-carboxamide

HRID 715605Notes

Reaction equation

Cl[C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[C:5]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1[Cl:24])[N:6]2[C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=1.FC(F)(F)C([O-])=O.[C:32]([C:35]1([C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[CH2:40][CH2:39][NH2+:38][CH2:37][CH2:36]1)(=[O:34])[NH2:33].C(N(CC)CC)C>C(O)C>[Cl:24][C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][C:18]=1[C:5]1[N:6]([C:11]2[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=2)[C:7]2[C:3]([N:4]=1)=[C:2]([N:38]1[CH2:37][CH2:36][C:35]([C:41]3[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=3)([C:32]([NH2:33])=[O:34])[CH2:40][CH2:39]1)[N:10]=[CH:9][N:8]=2

Participants

Conditions

Temperature: 55 °C

Procedure

To a solution of 6-chloro-8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purine (23.1 mg, 0.062 mmol, 1 eq.) in 2 mL of ethanol was added 4-carbamoyl-4-phenylpiperidin-1-ium trifluoroacetate (25 mg, 0.123 mmol, 2 eq.) and triethylamine (0.03 mL, 0.19 mmol, 3 eq.). The reaction was heated to 55° C. for 3 d. The reaction was concentrated in vacuo. The crude material was purified by silica gel column chromatography using 0-100% ethyl acetate/hexanes to yield 21 mg (63%) of 1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-phenylpiperidine-4-carboxamide. 1H NMR (300 MHz, METHANOL-d4) δ ppm 2.02-2.21 (m, 2 H) 2.62 (d, J=13.37 Hz, 2 H) 3.82 (br. s., 2H) 4.98 (d, J=15.54 Hz, 2H) 7.07-7.67 (m, 13 H) 8.02-8.29 (m, 1 H), [M+H]+ 543.6.

Workup

concentrationThe reaction was concentrated in vacuo
customThe crude material was purified by silica gel column chromatography

Sources & evidence

ORD record: ord-cfb5eb1314914b70bb430f2815fa829d
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09187480B2

Reaction notes

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