Sodium Azide → 17-Ethyl-1-hydroxy-12-[2'-(4"-azido-3"-propyloxycyclohexyl)-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 248277Notes

Reaction equation

HRID 248277 reaction equation
[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]([CH3:67])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47](OS(C3C=CC=CC=3[N+]([O-])=O)(=O)=O)[CH:46]([O:63][CH2:64][CH2:65][CH3:66])[CH2:45]2)[CH:7]([CH3:68])[CH2:6][CH2:5][C:4]1=[O:69])[CH3:2].[N-:70]=[N+:71]=[N-:72].[Na+]>CN(C)C=O.C(OCC)(=O)C>[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]([CH3:67])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([N:70]=[N+:71]=[N-:72])[CH:46]([O:63][CH2:64][CH2:65][CH3:66])[CH2:45]2)[CH:7]([CH3:68])[CH2:6][CH2:5][C:4]1=[O:69])[CH3:2]

Participants

5

Reactant 2

HCID 33557Sodium AzideHCID 5708934417-Ethyl-1-hydroxy-12-[2'-(4"-(o-nitrophenylsulfonyloxy)-3"-propyloxycyclohexyl)-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

Product 1

HCID 5709641317-Ethyl-1-hydroxy-12-[2'-(4"-azido-3"-propyloxycyclohexyl)-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-tetraoneYield 55.9%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
70 °C

Procedure

To a solution of 17-ethyl-1-hydroxy-12-[2'-(4"-(o-nitrophenylsulfonyloxy)-3"-propyloxycyclohexyl)-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 (111 mg) in N,N-dimethyl formamide (1.1 ml) was added an excess of sodium azide (32 mg) and the mixture heated to 70° C. After 5.5 hours the reaction was cooled to room temperature, diluted with ethyl acetate, extracted from half-saturated ammonium chloride, and washed with brine. The combined organics were dried over sodium sulfate and purified by flash chromatography on silica gel (ethyl acetate: hexane (1:2)+1% methanol) to give the title compound (52 mg).

Workup

  1. temperatureAfter 5.5 hours the reaction was cooled to room temperature
  2. extractionextracted from half-saturated ammonium chloride
  3. washwashed with brine
  4. dry with materialThe combined organics were dried over sodium sulfate
  5. custompurified by flash chromatography on silica gel (ethyl acetate: hexane (1:2)+1% methanol)

Sources & evidence

ORD record
ord-8402b785720a4e38887b9466f8bb341c
Source dataset
uspto-grants-1993_05
Patent number
US05208228

Reaction notes

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