p-Toluenesulfonic acid → 17-Ethyl-1-hydroxy-12-[2'-(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-14,18-diene-2,3,10,16-tetraone

HRID 248245

反応式

HRID 248245 の反応式
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:52])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([OH:51])[CH2:45]2)[CH:7]([CH3:53])[CH:6](O)[CH2:5][C:4]1=[O:55])[CH3:2].C1(C)C=CC(S(O)(=O)=O)=CC=1>C1C=CC=CC=1>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:52])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([OH:51])[CH2:45]2)[CH:7]([CH3:53])[CH:6]=[CH:5][C:4]1=[O:55])[CH3:2]

参加物

4

反応物 2

HCID 6101p-Toluenesulfonic acidHCID 5720384517-Ethyl-1,14-dihydroxy-12-[2'(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

生成物 1

HCID 7734230917-Ethyl-1-hydroxy-12-[2'-(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-14,18-diene-2,3,10,16-tetraone収率 87.7%

試薬・触媒・溶媒 1

HCID 241Benzene溶媒

実験手順

A solution of 17-ethyl-1,14-dihydroxy-12-[2'-(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (210 mg) and a catalytic amount of p-toluenesulfonic acid in 40 ml of dry benzene was refluxed for 4 h under nitrogen atmosphere. The solvent was removed under reduced pressure and the dark brown residue was purified by column chromatography on silica gel (7% i-PrOH/CH2Cl2) to give 17-ethyl-1-hydroxy-12-[2'-(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-14,18-diene-2,3,10,16-tetraone (180 mg) as a white solid. This material was dissolved in ethanol (20 ml) and treated with 5% Rh/C (40 mg). Hydrogen was introduced via balloon for 30 min and the mixture was filtered through celite. Removal of the solvent followed by column chromatography on silica gave 172 mg of the title compound (Mass, 1H and 13C NMR data were consistent with the desired structure).

後処理

  1. customThe solvent was removed under reduced pressure
  2. customthe dark brown residue was purified by column chromatography on silica gel (7% i-PrOH/CH2Cl2)

出典と根拠

ORDレコード
ord-76a25d79899e49bc8d1cc42d8852b25a
出典データセット
uspto-grants-1993_05
特許番号
US05208228

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