Reaktion #53995

ord-18704da10ee74de88dd5566a784e2174

Reaktionsgleichung

COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@H](C)O)C(=O)OC(C)(C)C)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]3O[Si](C)(C)C(C)(C)C)c2=O)cc1
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-[(11S)-1-hydroxyethyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate
COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@H](C)O)C(=O)OC(C)(C)C)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]3O[Si](C)(C)C(C)(C)C)c2=O)cc1
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-[(1S)-1-hydroxyethyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate
→
COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](N)[C@H](C)O)C(=O)OC(C)(C)C)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]3O[Si](C)(C)C(C)(C)C)c2=O)cc1
tert-butyl (2S,3R)-2-[(3-{[(2S,3S)-2-amino-3-hydroxybutanoyl]amino}propyl)amino]-3-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate
Ausbeute 97.0%

Edukte

COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@H](C)O)C(=O)OC(C)(C)C)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]3O[Si](C)(C)C(C)(C)C)c2=O)cc1
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-[(11S)-1-hydroxyethyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate
COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@H](C)O)C(=O)OC(C)(C)C)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]3O[Si](C)(C)C(C)(C)C)c2=O)cc1
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-[(1S)-1-hydroxyethyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate

Reagenzien

[Pd]
palladium on carbon

Lösungsmittel

CO
methanol

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Vorschrift

By using an analogous procedure to that described for Example 2, tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-[(11S)-1-hydroxyethyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate (146 mg, 0.144 mmol, obtained from Example 10) was hydrogenated in methanol (3 ml) using 10% palladium on carbon (30 mg) to provide tert-butyl (2S,3R)-2-[(3-{[(2S,3S)-2-amino-3-hydroxybutanoyl]amino}propyl)amino]-3-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate (123 mg, 97%) as a white amorphous solid.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06858591B2uspto-grants-2005_02