تفاعل #53987

ord-3a53d92db9334debbea9c197c3fc5c60

معادلة التفاعل

COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@@H](O)C(C)C)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-hydroxy-2-methylpropyl]-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](O)C(C)C)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-hydroxy-2-methylpropyl]-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](O)C(C)C)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-hydroxy-4-methylpentanoyl]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
المردود 92.0%

المتفاعلات

COc1ccc(Cn2c(=O)ccn([C@@H]3OC([C@H](O)[C@H](NCCCNC(=O)[C@@H](NC(=O)OCc4ccccc4)[C@@H](O)C(C)C)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-hydroxy-2-methylpropyl]-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](O)C(C)C)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-hydroxy-2-methylpropyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate

الكواشف

[Pd]
palladium on carbon

المذيبات

CO
methanol

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

الإجراء التجريبي

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-hydroxy-2-methylpropyl]-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate (208 mg, 0.2 mmol, obtained from Example 1) was hydrogenated in methanol (2 ml) using 10% palladium on carbon (42 mg) under atmospheric pressure to provide tert-butyl (2S,3R)-2-[(3-{[(2S,3S)-2-amino-3-hydroxy-4-methylpentanoyl]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 (167 mg, 92%) as a white amorphous solid.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US06858591B2uspto-grants-2005_02