8,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acid → HCID 70419397, Verbindung

HRID 580592

Reaktionsgleichung

Reaktionsgleichung von HRID 580592
[F:1][C:2]1[C:3](F)=[C:4]2[O:9][CH2:8][CH:7]([CH3:10])[N:6]3[CH:11]=[C:12]([C:17]([OH:19])=[O:18])[C:13](=[O:16])[C:14]([CH:15]=1)=[C:5]23.[C:21]([O:25][C:26]([NH:28][C@H:29]1[C@@H:33]([CH3:34])[CH2:32][NH:31][CH2:30]1)=[O:27])([CH3:24])([CH3:23])[CH3:22]>CS(C)=O>[C:21]([O:25][C:26]([NH:28][C@H:29]1[C@@H:33]([CH3:34])[CH2:32][N:31]([C:3]2[C:2]([F:1])=[CH:15][C:14]3[C:13](=[O:16])[C:12]([C:17]([OH:19])=[O:18])=[CH:11][N:6]4[CH:7]([CH3:10])[CH2:8][O:9][C:4]=2[C:5]=34)[CH2:30]1)=[O:27])([CH3:24])([CH3:22])[CH3:23]

Komponenten

4

Edukt 2

HCID 5342788,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acidHCID 11138119(3S,4S)-3-(Boc-amino)-4-methylpyrrolidine

Produkt 1

HCID 70419397HCID 70419397, VerbindungAusbeute 70,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 679Dimethyl SulfoxideLösungsmittel

Versuchsvorschrift

A mixture of 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid (0.5 g), anhydrous dimethyl sulfoxide (10 ml) and cis-3-t-butoxycarbonylamino-4-methylpyrrolidine (0.54 g) was stirred for 2 hours at 90°-100° C. and then concentrated. To the residue was added methanol and the resulting precipitate was collected by filtration and then washed with cold methanol to give the title compound (0.58 g) as yellowish powder, mp 219°-220° C.

Aufarbeitung

  1. concentrationconcentrated
  2. additionTo the residue was added methanol
  3. filtrationthe resulting precipitate was collected by filtration
  4. washwashed with cold methanol

Quellen und Nachweise

ORD-Eintrag
ord-b7f2201273df4e4fa8288ce078d6c38d
Quelldatensatz
uspto-grants-1988_06
Patentnummer
US04753953

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