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Benzyloxycarbonylamino

Cyclocondensation of 2-aminopyridines with methyl 3-(A,A-dimethyla-mino)-2-(benzyloxycarbonylamino)acrylate in boiling AcOH for several hours gave 3-(benzyloxycarbonylamino)-4//-pyrido[l, 2-n]pyrimidin-4-ones 370 (99CCC177, 00MI33). 2-Amino-6-methylpyridine afforded only condensation product 371. [Pg.247]

Dimethoxy-4-methyl-3-oxo-3,4-dihydro-2-quinoxalinecarbonyl azide (115) gave 3-benzyloxycarbonylamino-6,7-dimethoxy-l-methyl-2(l//)-quinoxali-none (116) (PhCHjOH, PhH, 80°C, sealed, 1 h 20°C also analogs, all in... [Pg.338]

Benzyloxyc irbonylamino-5-[3-benzyloxycarbonylamino-6-(1-benzyloxycarbonylamino-ethyl)-tetrahydropyran-2-yloxy]-2.2-difhioro-9-methyl-2-oxo-ElOb,. 183 (CO - CF2)... [Pg.824]

Benzyloxycarbonylamino-2-oxy-6 phenyl-1,2-dihydro-l-pyridyl)-N-(2-t-butyldimethylsiloxy-3,3,3-trifluoro-l-isopropyl-propyl)acetamide... [Pg.84]

Azetidin r /.v-4-(Azidomcthyl)-3-benzyloxycarbonylamino-2-oxo-E16b, 572 (N-Aryl-Spaltung)... [Pg.1010]

Benzyloxycarbonylamino-4-methoxycarbonyl-2-oxo- E16b, 568 (N-Benzyl-Spaltung), 572 (N-Ary 1-Spaltung)... [Pg.1139]

Low asymmetric induction is observed when (R)-3-benzyloxycarbonylamino-5-hexenoic acid (1, R = H) is iodolactonized under kinetic conditions (iodine/potassium iodide/sodium hydrogen carbonate). A mixture of the cis- and trww-iodo-5-lactones (60 40) in 94% yield is obtained. Better stereoselectivity can be obtained when the. V-benzyl derivative 1 (R = Bn) is cyclized under the same conditions. In fact, an 86 14 cisjtram) ratio is observed, showing that halolactonization is kinetically favored over halocarbamation, with the bulky substituent at nitrogen inducing high selectivity7. n n... [Pg.239]

Hydrogenation of 3-(benzyloxycarbonylamino)-2,5-dimethoxypyrazine in ethanol over palladium-charcoal gave 3-amino-2,5-dimethoxypyrazine and 2-amino-3,5-dimethoxypyrazine was prepared similarly (881). [Pg.209]

See other pages where Benzyloxycarbonylamino is mentioned: [Pg.203]    [Pg.215]    [Pg.2306]    [Pg.2306]    [Pg.2306]    [Pg.177]    [Pg.195]    [Pg.88]    [Pg.503]    [Pg.203]    [Pg.215]    [Pg.205]    [Pg.227]    [Pg.2306]    [Pg.2306]    [Pg.2306]    [Pg.83]    [Pg.254]    [Pg.254]    [Pg.203]    [Pg.215]    [Pg.721]    [Pg.1016]    [Pg.259]    [Pg.34]    [Pg.234]    [Pg.649]    [Pg.1337]   
See also in sourсe #XX -- [ Pg.503 ]



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2-Benzyloxycarbonylamino-4-phenyl

Benzyloxycarbonylamino acids

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