2-((Tert-butyldimethylsilyl)oxy)acetaldehyde → HCID 141558697, compound

HRID 1886696Notes

Reaction equation

HRID 1886696 reaction equation
[C:1]([NH:20][C:21]1[S:22][CH:23]=[C:24](/[C:26](=[N:71]/[O:72][C:73]([C:86]2[CH:91]=[CH:90][CH:89]=[CH:88][CH:87]=2)([C:80]2[CH:85]=[CH:84][CH:83]=[CH:82][CH:81]=2)[C:74]2[CH:79]=[CH:78][CH:77]=[CH:76][CH:75]=2)/[C:27]([NH:29][CH:30]2[C:69](=[O:70])[N:32]3[C:33]([C:57]([O:59][CH2:60][C:61]4[CH:66]=[CH:65][C:64]([O:67][CH3:68])=[CH:63][CH:62]=4)=[O:58])=[C:34]([CH:37]=P(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[CH2:35][S:36][C@H:31]23)=[O:28])[N:25]=1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Si:92]([O:99][CH2:100][CH:101]=O)([C:95]([CH3:98])([CH3:97])[CH3:96])([CH3:94])[CH3:93]>ClCCl.CCCCCC.C(OCC)(=O)C>[C:1]([NH:20][C:21]1[S:22][CH:23]=[C:24](/[C:26](=[N:71]/[O:72][C:73]([C:80]2[CH:81]=[CH:82][CH:83]=[CH:84][CH:85]=2)([C:74]2[CH:75]=[CH:76][CH:77]=[CH:78][CH:79]=2)[C:86]2[CH:87]=[CH:88][CH:89]=[CH:90][CH:91]=2)/[C:27]([NH:29][CH:30]2[C:69](=[O:70])[N:32]3[C:33]([C:57]([O:59][CH2:60][C:61]4[CH:62]=[CH:63][C:64]([O:67][CH3:68])=[CH:65][CH:66]=4)=[O:58])=[C:34](/[CH:37]=[CH:101]\[CH2:100][O:99][Si:92]([C:95]([CH3:96])([CH3:97])[CH3:98])([CH3:93])[CH3:94])[CH2:35][S:36][C@H:31]23)=[O:28])[N:25]=1)([C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

Participants

6

Reactant 2

HCID 41877882-((Tert-butyldimethylsilyl)oxy)acetaldehydeHCID 140362605HCID 140362605, compound

Product 1

HCID 141558697HCID 141558697, compoundYield 60%

Reagents, catalysts & solvents 3

HCID 6344DichloromethaneSolventHCID 8058HexaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of 4-methoxyphenylmethyl 7-[(Z)-2-(2-tritylaminothiazol-4-yl)-2-trityloxyiminoacetamido]-3-(triphenylphosphoranylidene)methyl-3-cephem-4-carboxylate (9.07 g; 7.27 mmol) and t-butyldimethylsilyloxyacetaldehyde (1.8 g; 10.34 mmol) in dichloromethane (100 ml) was stirred at room temperature for 16 hours. After the solvent was distilled off under reduced pressure, the residue was purified by chromatography on a silica gel column (n-hexane:ethyl acetate=2.5:1) whereby the title compound (4.99 g; 4.36 mmol; 60.0%) was obtained.

Workup

  1. distillationAfter the solvent was distilled off under reduced pressure

Sources & evidence

ORD record
ord-f460a0c67f42446c933e7dd6c222335e
Source dataset
uspto-grants-1992_09
Patent number
US05151417

Reaction notes

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