2,4,6-Trimethylpyridine → N-(4-(((2-cyanobenzo[d]thiazol-6-yl)oxy)methyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide

HRID 921509노트

반응식

HRID 921509 반응식
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10](=[O:26])[CH2:11][C:12]([CH3:25])([C:14]2[C:19](=[O:20])[C:18]([CH3:21])=[C:17]([CH3:22])[C:16](=[O:23])[C:15]=2[CH3:24])[CH3:13])=[CH:5][CH:4]=1.[OH:27][C:28]1[CH:38]=[CH:37][C:31]2[N:32]=[C:33]([C:35]#[N:36])[S:34][C:30]=2[CH:29]=1.N1C(C)=CC(C)=CC=1C>C1COCC1>[C:35]([C:33]1[S:34][C:30]2[CH:29]=[C:28]([O:27][CH2:2][C:3]3[CH:8]=[CH:7][C:6]([NH:9][C:10](=[O:26])[CH2:11][C:12]([CH3:25])([C:14]4[C:19](=[O:20])[C:18]([CH3:21])=[C:17]([CH3:22])[C:16](=[O:23])[C:15]=4[CH3:24])[CH3:13])=[CH:5][CH:4]=3)[CH:38]=[CH:37][C:31]=2[N:32]=1)#[N:36]

참가 물질

5

반응물 3

HCID 79532,4,6-TrimethylpyridineHCID 98819122-Cyano-6-hydroxybenzothiazoleHCID 86685024N-(4-(Bromomethyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide

생성물 1

HCID 71285603N-(4-(((2-cyanobenzo[d]thiazol-6-yl)oxy)methyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide수율 40%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

A mixture of N-(4-(bromomethyl)phenyl)-3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanamide (0.23 g, 0.57 mmol), 6-hydroxy-2-cyanobenzothiazole (0.15 g, 0.86 mmol), 2,4,6-collidine (0.125 ml) and Ag2CO3 (0.24 g, 0.86 mmol) in 15 ml of dry THF was stirred at room temperature over night. After removal of solid by filtration, the compound was purified by silica chromatography using heptane and ethyl acetate as eluent to give a yield of 40%. The product was further purified by HPLC to remove small contamination of 2-cyano-6-hydroxybenzothiazole. 1H NMR (300 MHz, CD2Cl2) δ 7.4-7.5 (m, 3H), 7.35-7.42 (m, 2H), 7.32 (dd, 1H), 7.25 (s, br, 1H, NH), 7.18 (dd, 1H), 5.15 (s, 2H, CH2O), 2.99 (s, 2H, CH2), 2.14 (s, 3H, CH3), 1.92 (s, 6H, CH3), 1.47 (s, 6H, CH3). MS (m/e): 514.2 (M+).

후처리

  1. customAfter removal of solid
  2. filtrationby filtration
  3. customthe compound was purified by silica chromatography
  4. customto give a yield of 40%
  5. customThe product was further purified by HPLC
  6. customto remove small contamination of 2-cyano-6-hydroxybenzothiazole

출처 및 근거

ORD 기록
ord-0f495beec1d0428fb1e347dba9f0e192
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09273343B2

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