Triphenylphosphine → allyl (1S,5R,6S)-6-[1(R)-allyloxycarbonyloxy-ethyl]-2-[9,9-dioxo-6-(2-triethylsilanyloxy-ethyl)-10H-9-thia-10-aza-phenanthren-10-ylmethyl)-1-methyl-carbapen-2-em-3-carboxylate

HRID 1597171Notes

Reaction equation

HRID 1597171 reaction equation
[CH2:1]([O:4][C:5]([O:7][C@@H:8]([C@H:10]1[C:25](=[O:26])[N:12]2[C:13]([C:19]([O:21][CH2:22][CH:23]=[CH2:24])=[O:20])=[C:14]([CH2:17]O)[C@H:15]([CH3:16])[C@H:11]12)[CH3:9])=[O:6])[CH:2]=[CH2:3].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[O:46]=[S:47]1(=[O:71])[NH:60][C:59]2[CH:58]=[CH:57][CH:56]=[CH:55][C:54]=2[C:53]2[C:48]1=[CH:49][CH:50]=[C:51]([CH2:61][CH2:62][O:63][Si:64]([CH2:69][CH3:70])([CH2:67][CH3:68])[CH2:65][CH3:66])[CH:52]=2.N(C(OC(C)C)=O)=NC(OC(C)C)=O>O1CCCC1.C(Cl)(Cl)Cl>[CH2:1]([O:4][C:5]([O:7][C@@H:8]([C@H:10]1[C:25](=[O:26])[N:12]2[C:13]([C:19]([O:21][CH2:22][CH:23]=[CH2:24])=[O:20])=[C:14]([CH2:17][N:60]3[C:59]4[CH:58]=[CH:57][CH:56]=[CH:55][C:54]=4[C:53]4[C:48](=[CH:49][CH:50]=[C:51]([CH2:61][CH2:62][O:63][Si:64]([CH2:67][CH3:68])([CH2:69][CH3:70])[CH2:65][CH3:66])[CH:52]=4)[S:47]3(=[O:71])=[O:46])[C@H:15]([CH3:16])[C@H:11]12)[CH3:9])=[O:6])[CH:2]=[CH2:3]

Participants

7

Reactant 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 11046746allyl (1S,5R,6S)-2-(hydroxymethyl)-6-[1(R)-allyloxycarbonyloxy-ethyl]-1-methylcarbapen-2-em-3-carboxylateHCID 216991149,9-dioxo-6-(2-triethylsilanyloxy-ethyl)-10H-9-thia-10-aza-phenanthrene

Product 1

HCID 131722870allyl (1S,5R,6S)-6-[1(R)-allyloxycarbonyloxy-ethyl]-2-[9,9-dioxo-6-(2-triethylsilanyloxy-ethyl)-10H-9-thia-10-aza-phenanthren-10-ylmethyl)-1-methyl-carbapen-2-em-3-carboxylate

Reagents, catalysts & solvents 2

HCID 6212ChloroformSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of allyl (1S,5R,6S)-6-[1(R)-allyloxycarbonyloxy-ethyl]-2-hydroxymethyl-1-methyl-carbapen-2-em-3-carboxylate (365 mg, 1.0 mmol), triphenylphosphine (315 mg, 1.2 mmol), and 9,9-dioxo-6-(2-triethylsilanyloxy-ethyl)-10H-9-thia-10-aza-phenanthrene (429 mg, 1.1 mmol) in anhydrous tetrahydrofuran (7.3 mL) is cooled in an ice-bath and stirred under a nitrogen atmosphere while diisopropyl azodicarboxylate (0.24 mL, 1.2 mmol) is added dropwise over a few minutes. The resulting solution is stirred in the cold for 30 minutes, then diluted with chloroform, washed with 5% aqueous sodium bicarbonate and brine, dried over sodium sulfate, filtered and evaporated under vacuum. The residue is purified by silica gel flash chromatography , eluting with hexane-ethyl acetate, to afford allyl (1S,5R,6S)-6-[1(R)-allyloxycarbonyloxy-ethyl]-2-[9,9-dioxo-6-(2-triethylsilanyloxy-ethyl)-10H-9-thia-10-aza-phenanthren-10-ylmethyl)-1-methyl-carbapen-2-em-3-carboxylate.

Workup

  1. additionis added dropwise over a few minutes
  2. washwashed with 5% aqueous sodium bicarbonate and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. customevaporated under vacuum
  6. customThe residue is purified by silica gel flash chromatography
  7. washeluting with hexane-ethyl acetate

Sources & evidence

ORD record
ord-9235e10b1c7c4715a90e683843130987
Source dataset
uspto-grants-2001_09
Patent number
US06294528B1

Reaction notes

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