Реакция #2146792

ord-c97ee0867c0c4ea295bece421e8873f7

Уравнение реакции

CI
MeI
COc1ccc2c(C(=O)c3cc(OC)c(OC)c(OC)c3)c(-c3c[nH]cn3)oc2c1
[2-(1H-Imidazol-4-yl)-6-methoxy-benzofuran-3-yl]-(3,4,5-trimethoxyphenyl)-methanone
[H-].[Na+]
NaH
COc1ccc2c(C(=O)c3cc(OC)c(OC)c(OC)c3)c(-c3cn(C)cn3)oc2c1
product
Выход 58.0%
COc1ccc2c(C(=O)c3cc(OC)c(OC)c(OC)c3)c(-c3cn(C)cn3)oc2c1
[2-(1-methyl-1H-Imidazol-4-yl)-6-methoxy-benzofuran-3-yl]-(3,4,5-trimethoxyphenyl)-methanone
Выход 58.0%

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    workup.WAITleft over night
  2. 2
    Другоеthen quenched with 10% NH4Cl
  3. 3
    Экстракцияextracted with EtOAc
  4. 4
    Другоеchromatographed with straight EtOAc

Методика

This material was prepared by N-methylation of [2-(1H-Imidazol-4-yl)-6-methoxy-benzofuran-3-yl]-(3,4,5-trimethoxyphenyl)-methanone (entry 45, Table 1) was made from Il-0085 by N-methylation. 20 mg of starting material (0.049 mmol) was dissolved in 1 ml dry THF then treated with 9 mg of 60% NaH (0.225 mmol) then after 10 minutes with MeI (15 uL, 0.24 mmol) and left over night then quenched with 10% NH4Cl extracted with EtOAc and chromatographed with straight EtOAc to give 12 mg product (58% yield). Proton data is 7.86 (s, 1H), 7.62 (s, 1H), 7.13-7.09 (m, 2H), 7.12 (s, 2H), 6.79 (dd, J=8.7, 2.1 Hz, 1H), 3.92 (s, 3H), 3.84 (s, 3H), 3.76 (s, 6H), 3.72 (s, 3H).

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US08278290B2uspto-grants-2012_10