2-Nitrobenzenesulfonyl chloride → HCID 57236676, compound

HRID 373276Notes

Reaction equation

HRID 373276 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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH2:52][CH:53]=[CH2:54])[CH2:45]2)[CH:7]([CH3:56])[CH2:6][CH2:5][C:4]1=[O:57])[CH3:2].C(N(C(C)C)CC)(C)C.[N+:67]([C:70]1[CH:75]=[CH:74][CH:73]=[CH:72][C:71]=1[S:76](Cl)(=[O:78])=[O:77])([O-:69])=[O:68]>C(Cl)Cl.CN(C)C1C=CN=CC=1.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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][S:76]([C:71]3[CH:72]=[CH:73][CH:74]=[CH:75][C:70]=3[N+:67]([O-:69])=[O:68])(=[O:77])=[O:78])[CH:46]([O:51][CH2:52][CH:53]=[CH2:54])[CH2:45]2)[CH:7]([CH3:56])[CH2:6][CH2:5][C:4]1=[O:57])[CH3:2]

Participants

7

Reactant 3

HCID 155402-Nitrobenzenesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 56989260HCID 56989260, compound

Product 1

HCID 57236676HCID 57236676, compoundYield 81.2%

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 17-ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-allyloxycyclohexyl)-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 (66 mg) in dry methylene chloride (1.4 ml) was added an excess of diisopropylethyl amine (34 μl) and o-nitrobenzenesulfonyl chloride (36 mg) followed by addition of 4-dimethylaminopyridine (24 mg). The mixture was stirred at room temperature for 18 hours at which time it was diluted with ethyl acetate, extracted from saturated sodium bicarbonate solution and washed with brine. The combined organics were dried over magnesium sulfate and the concentrate purified by flash chromatography on silica gel (ethyl acetate:hexane (1:1)+1% methanol to give the title compound (66 mg).

Workup

  1. extractionextracted from saturated sodium bicarbonate solution
  2. washwashed with brine
  3. dry with materialThe combined organics were dried over magnesium sulfate
  4. customthe concentrate purified by flash chromatography on silica gel (ethyl acetate:hexane (1:1)+1% methanol

Sources & evidence

ORD record
ord-f9936379984a48b6ac5a823cbd1c3a48
Source dataset
uspto-grants-1992_11
Patent number
US05162334

Reaction notes

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