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Methyl iodide → RA Vii

HRID 1632672
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1632672
[CH3:1]OC.[CH3:4][C@@H:5]1[NH:40][C:38](=[O:39])[C@@H:37]2[N:41]([CH3:44])[C:42](=[O:43])[C@@H:21]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([O:29][C:30]4[CH:35]=[C:34]([CH2:36]2)[CH:33]=[CH:32][C:31]=4[OH:45])=[CH:25][CH:24]=3)[N:20]([CH3:46])[C:18](=[O:19])[C@@H:17]([CH3:47])[NH:16][C:14](=[O:15])[C@H:13]([CH2:48][C:49]2[CH:54]=[CH:53][C:52]([O:55][CH3:56])=[CH:51][CH:50]=2)[N:12]([CH3:57])[C:10](=[O:11])[C@H:9]([CH3:58])[NH:8][C:6]1=[O:7].C[C@@H]1NC(=O)[C@@H]2N(C)C(=O)[C@@H](CC3C=CC(OC4C=C(C2)C=CC=4O)=CC=3)N(C)C(=O)[C@@H](C)NC(=O)[C@H](CC2C=CC(OC)=CC=2)N(C)C(=O)[C@H](C)NC1=O.C[C@@H]1NC(=O)[C@@H]2N(C)C(=O)[C@@H](CC3C=CC(OC4C=C(C2)C=CC=4O)=CC=3)N(C)C(=O)[C@@H](C)NC(=O)[C@H](CC2C=CC(OC)=CC=2)N(C)C(=O)[C@H](C)NC1=O.C[C@@H]1NC(=O)[C@@H]2N(C)C(=O)[C@@H](CC3C=CC(OC4C=C(C2)C=CC=4O)=CC=3)N(C)C(=O)[C@@H](C)NC(=O)[C@H](CC2C=CC(OC)=CC=2)N(C)C(=O)[C@H](C)NC1=O.O.O.O.O.O.CI>COCCOC>[CH3:4][C@H:5]1[NH:40][C:38](=[O:39])[C@H:37]2[N:41]([CH3:44])[C:42](=[O:43])[C@H:21]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([O:29][C:30]4[CH:35]=[C:34]([CH2:36]2)[CH:33]=[CH:32][C:31]=4[O:45][CH3:1])=[CH:25][CH:24]=3)[N:20]([CH3:46])[C:18](=[O:19])[C@H:17]([CH3:47])[NH:16][C:14](=[O:15])[C@H:13]([CH2:48][C:49]2[CH:54]=[CH:53][C:52]([O:55][CH3:56])=[CH:51][CH:50]=2)[N:12]([CH3:57])[C:10](=[O:11])[C@H:9]([CH3:58])[NH:8][C:6]1=[O:7]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6328Methyl iodideHCID 8254Dimethyl EtherHCID 11979419Bouvardin, 5-(N-methyl-L-tyrosine)-

Produkt 1

HCID 3034401RA Vii

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8071
1,2-Dimethoxyethane
Lösungsmittel

Versuchsvorschrift

In 10 ml of anhydrous 1,2-dimethoxy ethane, 100 mg of the methylether derivative of TPC-A was dissolved and 240 mg of potassium fluoride-alumina and excess amount of methyl iodide were added and the mixture was shielded from the light while stirring at room temperature overnight. After completion of the reaction, the solution was filtered, the filtrate was subjected to distillation in vacuo to remove solvent and the residue obtained was purified by P-TLC followed by the recrystallization from methanol to obtain N-methyl derivative of the methylether of TPC-A (98 mg) as colorless crystal having m.p. of 285° to 292° C. (decomp) and [α]D27 of -166° (CHCl3).

Aufarbeitung

  1. customAfter completion of the reaction
  2. filtrationthe solution was filtered
  3. distillationthe filtrate was subjected to distillation in vacuo
  4. customto remove solvent
  5. customthe residue obtained
  6. customwas purified by P-TLC
  7. customfollowed by the recrystallization from methanol

Quellen und Nachweise

ORD-Eintrag
ord-c37596a28787446e96f95a885c9270aa
Quelldatensatz
uspto-grants-1984_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04476299

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