Distamycin A → 1H-Pyrrole-2-carboxamide, N-(5-(((2-cyanoethyl)amino)carbonyl)-1-methyl-1H-pyrrol-3-yl)-4-(((4-(formylamino)-1-methyl-1H-pyrrol-2-yl)carbonyl)amino)-1-methyl-, hydrate

HRID 1018713노트

반응식

HRID 1018713 반응식
[CH3:1][N:2]1[C:6]([C:7]([NH:9][C:10]2[CH:14]=[C:13]([C:15]([NH:17][C:18]3[CH:22]=[C:21]([C:23]([NH:25][CH2:26][CH2:27][C:28](N)=[NH:29])=[O:24])[N:20]([CH3:31])[CH:19]=3)=[O:16])[N:12]([CH3:32])[CH:11]=2)=[O:8])=[CH:5][C:4]([NH:33][CH:34]=[O:35])=[CH:3]1.C1(=O)OC(=O)CC1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[CH3:31][N:20]1[CH:19]=[C:18]([NH:17][C:15]([C:13]2[N:12]([CH3:32])[CH:11]=[C:10]([NH:9][C:7]([C:6]3[N:2]([CH3:1])[CH:3]=[C:4]([NH:33][CH:34]=[O:35])[CH:5]=3)=[O:8])[CH:14]=2)=[O:16])[CH:22]=[C:21]1[C:23]([NH:25][CH2:26][CH2:27][C:28]#[N:29])=[O:24]

참가 물질

5

반응물 3

HCID 3115Distamycin AHCID 7922Succinic anhydrideHCID 11430Potassium Carbonate

생성물 1

HCID 30543151H-Pyrrole-2-carboxamide, N-(5-(((2-cyanoethyl)amino)carbonyl)-1-methyl-1H-pyrrol-3-yl)-4-(((4-(formylamino)-1-methyl-1H-pyrrol-2-yl)carbonyl)amino)-1-methyl-, hydrate수율 77,749.898%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
60 °C

실험 절차

To a solution of 1 g of distamycin A in 20 ml DMF were added 550 mg of succinic anhydride and 950 mg of K2CO3. The solution was heated at 60° C. for 3 hours then evaporated to dryness and the crude residue was purified by flash chromatography (methylene chloride/methanol: 9/1) to give 750 g of 3-[1-methyl-4[1-methyl-4[1-methyl-4-formamidopyrrole-2-carboxamido]pyrrole-2-carboxamido]pyrrole-2-carboxamido]propionitrile which was dissolved in 20 ml of methanol and added of 5 ml of HCl 2N. The solution was stirred at room temperature for 2 days, the solvent evaporated in vacuo and the solid residue suspended in 20 ml of ethyl acetate, yielding, after filtration 560 mg of the intermediate.

후처리

  1. customthen evaporated to dryness
  2. customthe crude residue was purified by flash chromatography (methylene chloride/methanol: 9/1)

출처 및 근거

ORD 기록
ord-59002045a7044448b34da85c498cc02f
출처 데이터셋
uspto-grants-2002_11
특허 번호
US06482920B1

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