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23
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85030271215
-
-
The commercially avilable (1S)-(+)-camphor-10-sulfonic acid (E-Merck, Germany) was used
-
8. The commercially avilable (1S)-(+)-camphor-10-sulfonic acid (E-Merck, Germany) was used.
-
-
-
-
24
-
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0001272543
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-
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-
25
-
-
85030277158
-
-
1H NMR (200 MHz) spectral analyses of the crude reaction mixture showed formation of only cis diastereomers
-
1H NMR (200 MHz) spectral analyses of the crude reaction mixture showed formation of only cis diastereomers.
-
-
-
-
26
-
-
85030269029
-
-
2O (68:32), flow rate 1 mL/min
-
2O (68:32), flow rate 1 mL/min.
-
-
-
-
27
-
-
85030275311
-
-
note
-
17b
-
-
-
-
28
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0001163944
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13. Ojima, I.; Suga, S.; Abe, R.; Tetrahedron Lett. 1980, 21, 3907.
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Ojima, I.1
Suga, S.2
Abe, R.3
-
29
-
-
85030268608
-
-
During the hydrogenolysis followed by hydrolysis of a β-lactams 6c, the acetoxy group also under went hydrolysis to give a-hydroxy esters 8
-
14. During the hydrogenolysis followed by hydrolysis of a β-lactams 6c, the acetoxy group also under went hydrolysis to give a-hydroxy esters 8.
-
-
-
-
30
-
-
85030277471
-
-
25 = -81.0 (c 2.24, EtOH)}
-
25 = -81.0 (c 2.24, EtOH)}.
-
-
-
-
32
-
-
0001118231
-
-
17. a) Gobe, E. J.; Page, Y-Le,.; Charland, J. P.; Lee, F. L.; White, P. S. J. Appl. Cryst. 1989, 22, 384.
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Gobe, E.J.1
Page, Y.-Le.2
Charland, J.P.3
Lee, F.L.4
White, P.S.5
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