Reaktion #11076

ord-6dc1cddd72cd4749963abab6ce95c3ee

Reaktionsgleichung

CC(C)(C)OC(=O)C1(C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
intermediate 19a
CC(C)(C)OC(=O)C1(C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
3-benzyloxycarbonylamino-6-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic acid tert-butyl ester
CC(C)(C)OC(=O)[C@@H]1CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
intermediate 1g
CC(C)(C)OC(=O)[C@@H]1CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
tert-butyl (S)-3-{[(benzyloxy)carbonyl]amino}-4-oxo-4,6,7,8-tetrahydropyrrolo[1,2-a]pyrimidine-6-carboxylate
CCI
ethyl iodide
→
CCC1(C(=O)OC(C)(C)C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
intermediate 22a
Ausbeute 18.0%
CCC1(C(=O)OC(C)(C)C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
3-benzyloxycarbonylamino-6-ethyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic acid tert-butyl ester
Ausbeute 18.0%

Edukte

CC(C)(C)OC(=O)C1(C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
intermediate 19a
CC(C)(C)OC(=O)C1(C)CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
3-benzyloxycarbonylamino-6-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic acid tert-butyl ester
CC(C)(C)OC(=O)[C@@H]1CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
intermediate 1g
CC(C)(C)OC(=O)[C@@H]1CCc2ncc(NC(=O)OCc3ccccc3)c(=O)n21
tert-butyl (S)-3-{[(benzyloxy)carbonyl]amino}-4-oxo-4,6,7,8-tetrahydropyrrolo[1,2-a]pyrimidine-6-carboxylate
CCI
ethyl iodide

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Vorschrift

According to the procedure for the preparation of intermediate 19a, alkylation of intermediate 1g (250 mg, 0.649 mmol) with ethyl iodide afforded 47 mg (18%) of intermediate 22a. MS (ESI) 414.4 (M+H+), 436.4 (M+Na+).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07094783B2uspto-grants-2006_08