5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetraazole → 2-butyl-5-pyrrol-1-yl-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carbonitrile

HRID 1197585노트

반응식

HRID 1197585 반응식
[CH2:1]([C:5]1[NH:6][C:7]([C:15]#[N:16])=[C:8]([N:10]2[CH:14]=[CH:13][CH:12]=[CH:11]2)[N:9]=1)[CH2:2][CH2:3][CH3:4].CC(C)([O-])C.[K+].C1(C(C2C=CC=CC=2)(C2C=CC=CC=2)[N:30]2[C:34]([C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][C:36]=3[C:41]3[CH:46]=[CH:45][C:44]([CH2:47]Br)=[CH:43][CH:42]=3)=[N:33][N:32]=[N:31]2)C=CC=CC=1>O1CCCC1>[CH2:1]([C:5]1[N:6]([CH2:47][C:44]2[CH:45]=[CH:46][C:41]([C:36]3[CH:37]=[CH:38][CH:39]=[CH:40][C:35]=3[C:34]3[NH:30][N:31]=[N:32][N:33]=3)=[CH:42][CH:43]=2)[C:7]([C:15]#[N:16])=[C:8]([N:10]2[CH:11]=[CH:12][CH:13]=[CH:14]2)[N:9]=1)[CH2:2][CH2:3][CH3:4]

참가 물질

5

반응물 3

HCID 100534615-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetraazoleHCID 149628802-Butyl-5-cyano-4-(1H-pyrrol-1-yl)imidazoleHCID 23665647Potassium tert-butoxide

생성물 1

HCID 1784417822-butyl-5-pyrrol-1-yl-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carbonitrile

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매3회

실험 절차

A solution of 2-butyl-5-cyano-4-(1H-pyrrol-1-yl)imidazole (Example 8, 1.7 g) in anhydrous tetrahydrofuran (20 mL) was treated with a solution of potassium tert-butoxide (0.97 g) in anhydrous tetrahydrofuran (20 mL) at room temperature. The mixture was stirred for 5 minutes then a solution of N-triphenylmethyl-5-[4'-(bromomethyl)biphenyl-2-yl]tetrazole (Example 12, 6.0 g) in anhydrous tetrahydrofuran (20 mL) was added. The reaction was stirred at room temperature under nitrogen atmosphere for 18 hours. The resulting suspension was filtered and the filtrate was evaporated. The residue was purified by flash chromatography on silica gel, eluting with chloroform hexane (90:10) to give the title compound in its triphenylmethyl-protected form. The triphenylmethyl protecting group was removed by refluxing in methanol for 24 hours. Evaporation gave a residue that was purified by chromatography on silica gel, eluting with a gradient of ethyl acetate-hexane (50:50) to ethyl acetate. Evaporation of solvents gave a gum that was redissolved in dichloromethane and evaporated to give the title compound as a solid foam. MS (FAB, thioglycerol) 470 (m+Na-1), 448 (m).

후처리

  1. stirringThe reaction was stirred at room temperature under nitrogen atmosphere for 18 hours
  2. filtrationThe resulting suspension was filtered
  3. customthe filtrate was evaporated
  4. customThe residue was purified by flash chromatography on silica gel
  5. washeluting with chloroform hexane (90:10)

출처 및 근거

ORD 기록
ord-6632d4c307e04a9b8510c64f1e40f6a8
출처 데이터셋
uspto-grants-1994_01
특허 번호
US05276048

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