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p-Toluenesulfonic acid → 17-Ethyl-20-fluoro-1,14-dihydroxy-12-[2'-(4"-(6'"-hydroxynaphth-2-yloxy)-3-methoxycyclohexyl)-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

HRID 2082629
Notes
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Reaction equation

HRID 2082629 reaction equation
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH:27]([F:31])[CH:26]([CH3:32])[CH2:25][CH:24]([O:33][CH3:34])[CH:23]2[O:35][C:19]([OH:39])([CH:20]([CH3:38])[CH2:21][CH:22]2[O:36][CH3:37])[C:18](=[O:40])[C:17](=[O:41])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:42])[O:9][CH:8]([C:43]([CH3:72])=[CH:44][CH:45]2[CH2:50][CH2:49][CH:48]([O:51][C:52]3[CH:61]=[CH:60][C:59]4[C:54](=[CH:55][CH:56]=[C:57]([O:62][Si](C(C)(C)C)(C)C)[CH:58]=4)[CH:53]=3)[CH:47]([O:70][CH3:71])[CH2:46]2)[CH:7]([CH3:73])[CH:6]([OH:74])[CH2:5][C:4]1=[O:75])[CH3:2].C1(C)C=CC(S(O)(=O)=O)=CC=1>C(Cl)Cl.CO>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH:27]([F:31])[CH:26]([CH3:32])[CH2:25][CH:24]([O:33][CH3:34])[CH:23]2[O:35][C:19]([OH:39])([CH:20]([CH3:38])[CH2:21][CH:22]2[O:36][CH3:37])[C:18](=[O:40])[C:17](=[O:41])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:42])[O:9][CH:8]([C:43]([CH3:72])=[CH:44][CH:45]2[CH2:50][CH2:49][CH:48]([O:51][C:52]3[CH:61]=[CH:60][C:59]4[C:54](=[CH:55][CH:56]=[C:57]([OH:62])[CH:58]=4)[CH:53]=3)[CH:47]([O:70][CH3:71])[CH2:46]2)[CH:7]([CH3:73])[CH:6]([OH:74])[CH2:5][C:4]1=[O:75])[CH3:2]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 6101p-Toluenesulfonic acidHCID 5710832717-Ethyl-20-fluoro-1,14-dihydroxy-12-[2'-(4"-(6'"-tert-butyldimethylsilyloxynaphth-2-yloxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetra-methyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]-octacos-18-ene-2,3,10,16-tetraone

Product 1

HCID 13171779317-Ethyl-20-fluoro-1,14-dihydroxy-12-[2'-(4"-(6'"-hydroxynaphth-2-yloxy)-3-methoxycyclohexyl)-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

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 17-ethyl-20-fluoro-1,14-dihydroxy-12-[2'-(4"-(6'"-tert-butyldimethylsilyloxynaphth-2-yloxy)-3"-methoxycyclohexyl)-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 (73 mg, 0.07 mmol) in CH2Cl2 (2 mL) was added a solution of p-toluenesulfonic acid in methanol (2 mL, 10% solution). The flask is capped and the mixture stirred 4 hours. The reaction is quenched with saturated aqueous NaHCO3 and extracted 4× with CH2Cl2. The organic extracts are combined and dried over anhydrous Na2SO4. The mixture is filtered and concentrated in vacuo. The product is isolated by preparative TLC on silica gel to afford the title compound.

Workup

  1. customThe flask is capped
  2. customThe reaction is quenched with saturated aqueous NaHCO3
  3. extractionextracted 4× with CH2Cl2
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationThe mixture is filtered
  6. concentrationconcentrated in vacuo
  7. customThe product is isolated by preparative TLC on silica gel

Sources & evidence

ORD record
ord-1c01a3b8e9d64f16b1aa3b62136467f0
Source dataset
uspto-grants-1993_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05189042

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes