Acetic Acid → HCID 65954232, compound

HRID 509468Notes

Reaction equation

[Cl:1][C:2]1[CH:13]=[C:6]2[C:7]([O:9]C(=O)[NH:11][C:5]2=[CH:4][CH:3]=1)=O.Cl.[NH2:15][CH:16]1[CH2:21][CH2:20][C:19](=[O:22])[NH:18][C:17]1=[O:23].C(N(CC)CC)C.C(O)(=O)C>C(#N)C>[NH2:11][C:5]1[CH:4]=[CH:3][C:2]([Cl:1])=[CH:13][C:6]=1[C:7]([NH:15][CH:16]1[CH2:21][CH2:20][C:19](=[O:22])[NH:18][C:17]1=[O:23])=[O:9]

Participants

Conditions

Temperature: 150 °C

Procedure

A stirred mixture of 5-chloroisatoic anhydride (0.51 g, 2.5 mmol), 3-amino-piperidine-2,6-dione hydrogen chloride (0.42 g, 2.5 mmol), triethylamine (1.8 mL, 12.7 mmol), and acetic acid (1.5 mL, 25.3 mmol) in acetonitrile (5 mL) was heated at 150° C. in a microwave oven for 5 miutes. The suspension was filtered and washed with water (50 mL) and ethyl acetate (20 mL) to give 2-amino-N-(2,6-dioxo-piperidin-3-yl)-5-chloro-benzamide as a white solid (0.31 g, 42% yield): 1H NMR (DMSO-d6) δ 1.91-2.12 (m, 2H, 2CHH), 2.50-2.56 (m, 1H, CHH), 2.72-2.80 (m, 1H, CHH), 4.71-4.76 (m, 1H, NCH), 6.58 (brs, 2H, NH2), 6.74 (d, J=8 Hz, 1H, Ar), 7.19 (dd, J=2, 9 Hz, 1H, Ar), 7.58 (t; J=2 Hz, 1H, Ar), 8.62 (d, J=8 Hz, 1H, NH), 10.86 (s, 1H, NH); 13C NMR (DMSO-d6) δ 23.99, 30.89, 49.00, 114.62, 117.60, 118.04, 127.25, 131.63, 148.61, 167.37, 172.20, 172.93; LCMS: MH=282, 284.

Workup

filtrationThe suspension was filtered
washwashed with water (50 mL) and ethyl acetate (20 mL)

Sources & evidence

ORD record: ord-3c5a62ffa9684236bcfebeb7ddc4e0e6
Source dataset: uspto-grants-2015_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09096573B2

Reaction notes

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