Reaction #335442

ord-3295fd512ce0413aaac912f590f532b7

Reaction equation

CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(O)C3)C(C)CCC1=O)C(C)CC2OC
17-ethyl-1-hydroxy-12-[2'-(4"-azido-3"-hydroxycyclohexyl)-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
CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(O)C3)C(C)CCC1=O)C(C)CC2OC
17-Ethyl-1-hydroxy-12-[2'-(4"-azido-3"-hydroxycyclohexyl)-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
COC(CBr)OC
bromoacetaldehyde dimethyl acetal
→
CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(OCC(OC)OC)C3)C(C)CCC1=O)C(C)CC2OC
title compound
CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(OCC(OC)OC)C3)C(C)CCC1=O)C(C)CC2OC
17-Ethyl-1-hydroxy-12-[2'-(4"-azido-3"-(2,2-dimethoxyethoxy)-cyclohexyl)-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

Reactants

CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(O)C3)C(C)CCC1=O)C(C)CC2OC
17-ethyl-1-hydroxy-12-[2'-(4"-azido-3"-hydroxycyclohexyl)-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
CCC1C=C(C)CC(C)CC(OC)C2OC(O)(C(=O)C(=O)N3CCCCC3C(=O)OC(C(C)=CC3CCC(N=[N+]=[N-])C(O)C3)C(C)CCC1=O)C(C)CC2OC
17-Ethyl-1-hydroxy-12-[2'-(4"-azido-3"-hydroxycyclohexyl)-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
COC(CBr)OC
bromoacetaldehyde dimethyl acetal

Reagents

[O]=[Ag]
silver oxide

Conditions

Temperature
70°CELSIUS
Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherThe solids are removed by filtration
  2. 2
    Washwashed with ethyl acetate
  3. 3
    Concentrationconcentrated in vacuo
  4. 4
    OtherThe resulting oil is purified by preparative tlc on silica gel

Procedure

A suspension of 17-ethyl-1-hydroxy-12-[2'-(4"-azido-3"-hydroxycyclohexyl)-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 (25 mg, Example 42) and silver oxide (25 mg) in 2 ml of bromoacetaldehyde dimethyl acetal is heated at 70° C. for 4 days. The solids are removed by filtration, washed with ethyl acetate, and concentrated in vacuo. The resulting oil is purified by preparative tlc on silica gel to give the title compound.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05208228uspto-grants-1993_05