17-Ethyl-1,14-dihydroxy-12-[1-(4-hydroxy-3-methoxycyclohexyl)prop-1-en-2-yl]-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-tetrone → 17-Ethyl-1,14-dihydroxy-12-[2'-(4"-allyloxy-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 6297

Reaction equation

HRID 6297 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]([CH3:53])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH3:52])[CH2:45]2)[CH:7]([CH3:54])[CH:6]([OH:55])[CH2:5][C:4]1=[O:56])[CH3:2].ClC(Cl)(Cl)C(=N)O[CH2:61][CH:62]=[CH2:63].FC(F)(F)S(O)(=O)=O>>[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]([CH3:53])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:63][CH:62]=[CH2:61])[CH:46]([O:51][CH3:52])[CH2:45]2)[CH:7]([CH3:54])[CH:6]([OH:55])[CH2:5][C:4]1=[O:56])[CH3:2]

Participants

4

Reactant 3

HCID 224117-Ethyl-1,14-dihydroxy-12-[1-(4-hydroxy-3-methoxycyclohexyl)prop-1-en-2-yl]-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-tetroneHCID 62406Trifluoromethanesulfonic acidHCID 316905Allyl 2,2,2-Trichloroacetimidate

Product 1

HCID 5727226117-Ethyl-1,14-dihydroxy-12-[2'-(4"-allyloxy-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

Procedure

To a solution of 17-ethyl-1,14-dihydroxy-12-[2'-(4"-hydroxy-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 (200 mg in 3.0 ml 33% methylene chloride in cyclohexane), allyl trichloroacetimidate (88 μl neat) was added and the reagents allowed to mix for 5 minutes. Trifluoromethanesulfonic acid (4.5 μl neat) was added slowly via syringe and the mixture stirred at room temperature. After 18 hours the reaction was quenched by the addition of saturated sodium bicarbonate and extracted with ethyl acetate (3×5 ml). The combined organics were washed with brine and dried over magnesium sulfate. Purification of the concentrate by flash chromatography on silica gel (ethyl acetate:hexane (1:2)+1% methanol) gave the title compound (156 mg).

Workup

  1. additionto mix for 5 minutes
  2. customAfter 18 hours the reaction was quenched by the addition of saturated sodium bicarbonate
  3. extractionextracted with ethyl acetate (3×5 ml)
  4. washThe combined organics were washed with brine
  5. dry with materialdried over magnesium sulfate
  6. customPurification of the
  7. concentrationconcentrate by flash chromatography on silica gel (ethyl acetate:hexane (1:2)+1% methanol)

Sources & evidence

ORD record
ord-2829dc3737ff47048b1cc81ac4786723
Source dataset
uspto-grants-1993_09
Patent number
US05247076

Linked notes

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