Piperidine → HCID 178507239, compound

HRID 1615218Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6](=[O:11])[CH2:5]2.[NH:12]1[C:16]2[CH:17]=[CH:18][C:19]([CH:21]=O)=[CH:20][C:15]=2[N:14]=[N:13]1.N1CCCCC1>CCO>[NH:12]1[C:16]2[CH:17]=[CH:18][C:19](/[CH:21]=[C:5]3/[C:6](=[O:11])[NH:7][C:8]4[C:4]/3=[CH:3][C:2]([NH2:1])=[CH:10][CH:9]=4)=[CH:20][C:15]=2[N:14]=[N:13]1

Participants

Conditions

Temperature: 90 °C

Procedure

A scintillation vial was charged with 5-aminoindolin-2-one (37 mg, 0.247 mmol), 1H-benzo[d][1,2,3]triazole-5-carbaldehyde (40 mg, 0.272 mmol), piperidine (2.5 uL, 0.025 mmol) and EtOH (2 mL). The reaction was then heated to 90° C. for 2 hrs. The EtOH was removed in vacuo and the residue loaded onto a silica gel column eluting with 92:8 CH2Cl2/MeOH to give 14 mg, 20% of a red solid. 1H NMR (400 MHz, d6-DMSO) δ 15.96 (bs, 1H), 10.15 (s, 1H), 8.21 (bs, 1H), 8.02 (bs, 1H), 7.73 (bs, 1H), 7.67 (s, 1H), 6.87 (s, 1H), 6.59-6.47 (m, 2H), 4.65 (bs, 2H); MS ESI 278.0 [M+H]+, calcd for [C15H11N5O+H]+ 278.10.

Workup

customThe EtOH was removed in vacuo
washeluting with 92:8 CH2Cl2/MeOH

Sources & evidence

ORD record: ord-1afb11ce814043d3906212e4f7a97c2b
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08765748B2

Reaction notes

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