Reaction #54020

ord-ebdf29c291ba47129182c02e5a7edd1d

Reaction equation

CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)NCCCN[C@H](C(=O)OC(C)(C)C)[C@@H](O)C1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](O[Si](C)(C)C(C)(C)C)[C@@H]1O[Si](C)(C)C(C)(C)C
5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate
CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)NCCCN[C@H](C(=O)OC(C)(C)C)[C@@H](O)C1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](O[Si](C)(C)C(C)(C)C)[C@@H]1O[Si](C)(C)C(C)(C)C
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(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
O=C(O)C(F)(F)F
trifluoroacetic acid
→
CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)NCCCN[C@H](C(=O)O)[C@@H](O)C1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](O)[C@@H]1O
(5S,12S)-12-[(R)-[(3S,4R,5R)-5-(2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)-3,4-dihydroxy-tetrahydro-2-furanyl](hydroxy)methyl]-5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oic acid
Yield 15.4%

Reactants

CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)NCCCN[C@H](C(=O)OC(C)(C)C)[C@@H](O)C1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](O[Si](C)(C)C(C)(C)C)[C@@H]1O[Si](C)(C)C(C)(C)C
5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oate
CC(C)C[C@H](NC(=O)OCc1ccccc1)C(=O)NCCCN[C@H](C(=O)OC(C)(C)C)[C@@H](O)C1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](O[Si](C)(C)C(C)(C)C)[C@@H]1O[Si](C)(C)C(C)(C)C
tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(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
O=C(O)C(F)(F)F
trifluoroacetic acid

Reagents

O
water

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherThe volatiles were removed
  2. 2
    Otherthe residue was azeotroped with toluene
  3. 3
    OtherThe resulting residue was purified by preparative HPLC (20×250 mm YMC-ODS column eluted with 10-70% acetonitrile in water containing 0.02% trifluoroacetic acid over 49 minutes)

Procedure

By using an analogous procedure to that described for Example 47, tert-butyl (5S,12S)-12-[(R)-[(3R,4R,5R)-3,4-bis[tert-butyl(dimethyl)silyl]oxy}-5-(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 (123 mg, 0.136 mmol, obtained from Example 6), trifluoroacetic acid (5 ml) and water (6 drops) were stirred for 10 hours at room temperature. The volatiles were removed and the residue was azeotroped with toluene. The resulting residue was purified by preparative HPLC (20×250 mm YMC-ODS column eluted with 10-70% acetonitrile in water containing 0.02% trifluoroacetic acid over 49 minutes) to provide (5S,12S)-12-[(R)-[(3S,4R,5R)-5-(2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)-3,4-dihydroxy-tetrahydro-2-furanyl](hydroxy)methyl]-5-isobutyl-3,6-dioxo-1-phenyl-2-oxa-4,7,11-triazatridecan-13-oic acid (13 mg, 15%) as a white solid.

Source

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