2,4-Dimethoxypyrimidine-5-boronic acid pinacol ester → HCID 23629660, compound

HRID 2375666Notes

Reaction equation

[NH2:1][C:2]1[C:11]2[C:6](=[C:7](I)[C:8]([F:12])=[CH:9][CH:10]=2)[N:5]=[N:4][C:3]=1[C:14]([NH:16][CH2:17][CH2:18][CH3:19])=[O:15].[CH3:20][O:21][C:22]1[N:27]=[C:26]([O:28][CH3:29])[C:25](B2OC(C)(C)C(C)(C)O2)=[CH:24][N:23]=1>>[NH2:1][C:2]1[C:11]2[C:6](=[C:7]([C:25]3[C:26]([O:28][CH3:29])=[N:27][C:22]([O:21][CH3:20])=[N:23][CH:24]=3)[C:8]([F:12])=[CH:9][CH:10]=2)[N:5]=[N:4][C:3]=1[C:14]([NH:16][CH2:17][CH2:18][CH3:19])=[O:15]

Participants

Reactant 2

HCID 162183882,4-Dimethoxypyrimidine-5-boronic acid pinacol ester

HCID 59791626HCID 59791626, compound

Product 1

HCID 23629660HCID 23629660, compound

Procedure

The title compound was prepared from 4-amino-7-flouro-8-iodo-N-propylcinnoline-3-carboxamide (220 mg, 58.8 mmol) and 2,4-dimethoxy-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrimidine (312 mg, 1.62 mmol) according to Method B to afford a white solid (123 mg, 54%). 1H NMR (300.132 MHz, CDCl3) δ 8.47 (t, J=5.4 Hz, 1H), 8.32 (s, 1H), 7.93 (dd, J=9.1, 5.2 Hz, 1H), 7.53 (dd, J=9.2, 8.4 Hz, 1H), 4.07 (s, 3H), 3.94 (s, 3H), 3.45 (q, J=6.7 Hz, 2H), 1.66 (sextet, J=7.3 Hz, 2H), 1.00 (t, J=7.4 Hz, 3H). MS APCI, m/z=387 (M+H). HPLC 1.87 min.

Sources & evidence

ORD record: ord-9b23ee3336634e3bbc2324684357f8f2
Source dataset: uspto-grants-2008_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07465795B2

Reaction notes

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