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p-Toluenesulfonic acid → 17-Ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-isopropyloxycyclohexyl)-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 247905
ノート
印刷プレビュー

反応式

HRID 247905 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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH:52]([CH3:54])[CH3:53])[CH2:45]2)[CH:7]([CH3:56])[CH:6](O)[CH2:5][C:4]1=[O:58])[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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH:52]([CH3:54])[CH3:53])[CH2:45]2)[CH:7]([CH3:56])[CH:6]=[CH:5][C:4]1=[O:58])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 6101p-Toluenesulfonic acidHCID 5721102117-Ethyl-1,14-dihydroxy-12-[2'-(4"-hydroxy-3"-isopropyloxycyclohexyl)-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 5707007817-Ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-isopropyloxycyclohexyl)-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 87.6%

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'-(4"-hydroxy-3"-isopropyloxycyclohexyl)-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 benzene was refluxed for 4 hours under a nitrogen atmosphere. The solvent was removed under reduced pressure and the dark residue was purified by chromatography (silica gel, 7% i-propanol/CH2Cl2) to give 17-ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-isopropyloxycyclohexyl)-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 solvent followed by chromatography (silica gel) gave 172 mg of the title compound. Mass, 1H and 13C NMR data were consistant with the title structure.

後処理

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

出典と根拠

ORDレコード
ord-9adb1fb462914870800daf522d282a3b
出典データセット
uspto-grants-1993_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05208241

反応ノート

読み込み中…

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