Reaction equation

CCOC(=O)C(NCCCNC(=O)[C@@H](NC(=O)OCc1ccccc1)[C@H](C)O)[C@@H](O)[C@H]1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O

Ethyl (5S)-12-[(R)-[(2R,3R,4R,5R)-3,4-bis(acetyloxy)-5-(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

→

CCOC(=O)C(NCCCNC(=O)[C@@H](N)[C@H](C)O)[C@@H](O)[C@H]1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O

ethyl (3R)-2-[(3-{[(2S,3S)-2-amino-3-hydroxybutanoyl]amino}propyl)amino]-3-[(2R,3R,4R,5R)-3,4-bis(acetyloxy)-5-(2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate

Yield 94.4%

Solvents

methanol

Conditions

Detailed conditions

See reaction.notes.procedure_details.

Workup

1
OtherThe catalyst was removed
2
Otherthe volatiles were removed in vacuo

Procedure

Ethyl (5S)-12-[(R)-[(2R,3R,4R,5R)-3,4-bis(acetyloxy)-5-(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 (86 mg, 0.119 mmole, obtained from Example 31) was hydrogenated using 10% palladium on carbon in methanol (2 ml) under atmospheric pressure. The catalyst was removed and the volatiles were removed in vacuo to provide ethyl (3R)-2-[(3-{[(2S,3S)-2-amino-3-hydroxybutanoyl]amino}propyl)amino]-3-[(2R,3R,4R,5R)-3,4-bis(acetyloxy)-5-(2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate (66 mg, 94%) as a white amorphous solid.

Source

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

Reaction #54009