Trifluoroacetic acid → 2-(5-((4-(2-Methylbenzo[d]thiazole-5-carbonyl)-1-oxa-4,9-diazaspiro[5,5]undecan-9-yl)methyl)thiophen-3-yl)acetaldehyde

HRID 471095Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 471095
CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.[OH:23][CH2:24][CH2:25][C:26]1[CH:27]=[C:28]([CH2:31][N:32]2[CH2:54][CH2:53][C:35]3([O:40][CH2:39][CH2:38][N:37]([C:41]([C:43]4[CH:44]=[CH:45][C:46]5[S:50][C:49]([CH3:51])=[N:48][C:47]=5[CH:52]=4)=[O:42])[CH2:36]3)[CH2:34][CH2:33]2)[S:29][CH:30]=1.FC(F)(F)C(O)=O.S([O-])([O-])(=O)=S.[Na+].[Na+].C(=O)(O)[O-].[Na+]>C(Cl)Cl.C(OCC)(=O)C>[CH3:51][C:49]1[S:50][C:46]2[CH:45]=[CH:44][C:43]([C:41]([N:37]3[CH2:36][C:35]4([CH2:53][CH2:54][N:32]([CH2:31][C:28]5[S:29][CH:30]=[C:26]([CH2:25][CH:24]=[O:23])[CH:27]=5)[CH2:33][CH2:34]4)[O:40][CH2:39][CH2:38]3)=[O:42])=[CH:52][C:47]=2[N:48]=1

Komponenten

8

Edukt 5

HCID 6422Trifluoroacetic acidHCID 24477Sodium ThiosulfateHCID 159087TriacetoxyperiodinaneHCID 516892Sodium BicarbonateHCID 57989243(9-((4-(2-Hydroxyethyl)thiophen-2-yl)methyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-methylbenzo[d]thiazol-5-yl)methanone

Produkt 1

HCID 579890032-(5-((4-(2-Methylbenzo[d]thiazole-5-carbonyl)-1-oxa-4,9-diazaspiro[5,5]undecan-9-yl)methyl)thiophen-3-yl)acetaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

Dess-Martin periodinane (0.27 g) was added to stirred solution of (9-((4-(2-hydroxyethyl)thiophen-2-yl)methyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-methylbenzo[d]thiazol-5-yl)methanone (example 49, step b) (0.20 g) and trifluoroacetic acid (0.033 mL) in DCM (5 mL). After 40 min, the reaction mixture was treated with aqueous saturated sodium thiosulphate solution (5 mL), saturated sodium bicarbonate solution (5 mL) and ethyl acetate (30 mL). The mixture was extracted twice with ethyl acetate, the combined organics were washed with saturated sodium bicarbonate solution, acetic acid (0.08 mL) was added, then the solution was dried over sodium sulphate, filtered, and evaporated in vacuo. Yield 0.2 g. Used directly in the next step.

Aufarbeitung

  1. extractionThe mixture was extracted twice with ethyl acetate
  2. washthe combined organics were washed with saturated sodium bicarbonate solution, acetic acid (0.08 mL)
  3. additionwas added
  4. dry with materialthe solution was dried over sodium sulphate
  5. filtrationfiltered
  6. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-ad443cf567014e288f9d8ae5e9bfc288
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08629271B2

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