반응 #54019

반응 방정식

tert-butyl (5S,12S)-12-[(R)-[(3S,4R,5R)-3,4-dihydroxy-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate

→

tert-butyl (2S,3R)-2-[(3-{[(2S)-2-amino-4-methylpentanoyl]amino}propyl)amino]-3-[(3S,4R,5R)-3,4-dihydroxy-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate

수율 90.4%

용매

methanol

반응 조건

후처리

1. 1
   기타for 4 hours

실험 절차

By using an analogous procedure to that described for Example 45, tert-butyl (5S,12S)-12-[(R)-[(3S,4R,5R)-3,4-dihydroxy-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate (20 mg, 0.025 mmol, obtained from Example 51) was hydrogenated in methanol (1 ml) using 10% palladium on carbon (8 mg) for 4 hours to provide tert-butyl (2S,3R)-2-[(3-{[(2S)-2-amino-4-methylpentanoyl]amino}propyl)amino]-3-[(3S,4R,5R)-3,4-dihydroxy-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-3-hydroxypropanoate (15 mg, 90%) as a white solid.

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