-
2
-
-
0028236160
-
-
a) Aeruginosin 298-A: M. Murakami, Y. Okita, H. Matsuda, T. Okino, K. Yamaguchi, Tetrahedron Lett. 1994, 35, 3129-3132;
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(1994)
Tetrahedron Lett.
, vol.35
, pp. 3129-3132
-
-
Murakami, M.1
Okita, Y.2
Matsuda, H.3
Okino, T.4
Yamaguchi, K.5
-
3
-
-
0028957349
-
-
b) Aeruginosins 98-A and 98-B: M. Murakami, K. Ishida, T. Okino, H. Matsuda, K. Yamaguchi, Tetrahedron Lett. 1995, 36, 2785-2788;
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(1995)
Tetrahedron Lett.
, vol.36
, pp. 2785-2788
-
-
Murakami, M.1
Ishida, K.2
Okino, T.3
Matsuda, H.4
Yamaguchi, K.5
-
4
-
-
0030580449
-
-
c) Aeruginosins 102-A and 102-B: H. Matsuda, T. Okino, M. Murakami, K. Yamaguchi, Tetrahedron 1996, 52, 14 501-14 506;
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(1996)
Tetrahedron
, vol.52
, pp. 14501-14506
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-
Matsuda, H.1
Okino, T.2
Murakami, M.3
Yamaguchi, K.4
-
5
-
-
0031690480
-
-
d) Aeruginosin 103-A: S. Kodani, K. Ishida, M. Murakami, J. Nat. Prod. 1998, 61, 1046-1048;
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(1998)
J. Nat. Prod.
, vol.61
, pp. 1046-1048
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-
Kodani, S.1
Ishida, K.2
Murakami, M.3
-
6
-
-
0033520230
-
-
e) Aeruginosins 298-B, 89-A and B, 98-C and 101: K. Ishida, H. Okita, H. Matsuda, T. Okino, M. Murakami, Tetrahedron 1999, 55, 10 971-10 988.
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(1999)
Tetrahedron
, vol.55
, pp. 10971-10988
-
-
Ishida, K.1
Okita, H.2
Matsuda, H.3
Okino, T.4
Murakami, M.5
-
7
-
-
0030894360
-
-
Aeruginosins 205-A and B: H. J. Shin, H. Matsuda, M. Murakami, K. Yamaguchi, J. Org. Chem. 1997, 62, 1810-1813.
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J. Org. Chem.
, vol.62
, pp. 1810-1813
-
-
Shin, H.J.1
Matsuda, H.2
Murakami, M.3
Yamaguchi, K.4
-
8
-
-
33847579497
-
-
[2a] that aeruginosin 298-A has an L-Leu unit, in this work we conclude that a D-Leu is present in this natural product
-
[2a] that aeruginosin 298-A has an L-Leu unit, in this work we conclude that a D-Leu is present in this natural product.
-
-
-
-
9
-
-
0034703342
-
-
For recent work on the isolation of other bioactive peptides from Microcyctis aeruginosa, see: a) R. Ishida, M. Murakami, J. Org. Chem. 2000, 65, 5898-5900;
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(2000)
J. Org. Chem.
, vol.65
, pp. 5898-5900
-
-
Ishida, R.1
Murakami, M.2
-
10
-
-
0034721686
-
-
b) K. Ishida, T. Kato, M. Murakami, M. Watanabe, M. F. Watanabe, Tetrahedron 2000, 56, 8643-8656.
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(2000)
Tetrahedron
, vol.56
, pp. 8643-8656
-
-
Ishida, K.1
Kato, T.2
Murakami, M.3
Watanabe, M.4
Watanabe, M.F.5
-
12
-
-
0032573882
-
-
J.-L. Rios Steiner, M. Murakami, A. Tulinsky, J. Am. Chem. Soc. 1998, 120, 597-598.
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(1998)
J. Am. Chem. Soc.
, vol.120
, pp. 597-598
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-
Rios Steiner, J.-L.1
Murakami, M.2
Tulinsky, A.3
-
13
-
-
0034669621
-
-
For a preliminary communication of part of this work, see: N. Valls, M. López-Canet, M. Vallribera, J. Bonjoch, J. Am. Chem. Soc. 2000, 122, 11 248-11 249.
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J. Am. Chem. Soc.
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Valls, N.1
López-Canet, M.2
Vallribera, M.3
Bonjoch, J.4
-
14
-
-
0000668586
-
-
References to 6-oxo-octahydroindole-2-carboxylic acids are scarce - all of them are in the field of tetaine dipeptide synthesis, usually as undesired products: a) P. Sawlewicz, I. Barska, M. Smulkowski, J. Gumieniak, T. Czarnomska, M. Dzieduszycka, E. Borowski, Rocz. Chem. 1976, 50, 1005-1008;
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(1976)
Rocz. Chem.
, vol.50
, pp. 1005-1008
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Sawlewicz, P.1
Barska, I.2
Smulkowski, M.3
Gumieniak, J.4
Czarnomska, T.5
Dzieduszycka, M.6
Borowski, E.7
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15
-
-
0001465549
-
-
b) M. Souchet, J. Guilhem, F. Le Goffic, Tetrahedron Lett. 1987, 28, 2371-2374;
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(1987)
Tetrahedron Lett.
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Souchet, M.1
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16
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0028360668
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c) H. Wild, J. Org. Chem. 1994, 59, 2748-2761.
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J. Org. Chem.
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Wild, H.1
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17
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-
0028810543
-
-
For syntheses of 3a-oxygenated hexahydro derivatives from tyrosine derivatives by oxidative processes, see: a) P. Wipf, Y. Kim, D. M. Golstein, J. Am. Chem. Soc. 1995, 117, 11 106-11 112;
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(1995)
J. Am. Chem. Soc.
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Wipf, P.1
Kim, Y.2
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18
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37049070426
-
-
b) M. Cavazza, G. Guella, L. Nucci, F. Pergola, N. Bicchierini, F. Pietra, J. Chem. Soc. Perkin Trans. 1 1993, 3117-3120;
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(1993)
J. Chem. Soc. Perkin Trans. 1
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Cavazza, M.1
Guella, G.2
Nucci, L.3
Pergola, F.4
Bicchierini, N.5
Pietra, F.6
-
20
-
-
0029822041
-
-
We have used this approach in the synthesis of related azabicyclic compounds: a) J. Bonjoch, J. Catena, N. Valls, J. Org. Chem. 1996, 61, 7106-7115.
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(1996)
J. Org. Chem.
, vol.61
, pp. 7106-7115
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Bonjoch, J.1
Catena, J.2
Valls, N.3
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21
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-
0030884711
-
-
b) J. Bonjoch, J. Catena, D. Terricabras, J.-C. Fernàndez, M. López-Canet, N. Valls, Tetrahedron: Asymmetry 1997, 8, 3143-3151.
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(1997)
Tetrahedron: Asymmetry
, vol.8
, pp. 3143-3151
-
-
Bonjoch, J.1
Catena, J.2
Terricabras, D.3
Fernàndez, J.-C.4
López-Canet, M.5
Valls, N.6
-
23
-
-
0030200972
-
-
For the first generation synthesis of 13, see:J. Bonjoch, J. Catena, E. Isábal, M. López-Canet, N. Valls, Tetrahedron: Asymmetry 1996, 7, 1899-1902.
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(1996)
Tetrahedron: Asymmetry
, vol.7
, pp. 1899-1902
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-
Bonjoch, J.1
Catena, J.2
Isábal, E.3
López-Canet, M.4
Valls, N.5
-
24
-
-
0002443261
-
-
13C NMR data of the reaction mixture shows. The tendency of secondary β-amino ketones toward hydration is well known: a) W. Wysocka, Heterocycles 1982, 19, 1-5;
-
(1982)
Heterocycles
, vol.19
, pp. 1-5
-
-
Wysocka, W.1
-
26
-
-
0001258881
-
-
For equilibration of β-amino ketones based on Mannich or retro-Michael processes, see inter alia: a) P. Slosse, C. Hootelé, Tetrahedron 1981, 37, 4287-4292;
-
(1981)
Tetrahedron
, vol.37
, pp. 4287-4292
-
-
Slosse, P.1
Hootelé, C.2
-
27
-
-
0001194280
-
-
b) J. Bonjoch, N. Casamitjana, J. Gràcia, J. Bosch, Tetrahedron Lett. 1989, 30, 5655-5658;
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(1989)
Tetrahedron Lett.
, vol.30
, pp. 5655-5658
-
-
Bonjoch, J.1
Casamitjana, N.2
Gràcia, J.3
Bosch, J.4
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29
-
-
0000877160
-
-
d) R. W. Scott, J. Epperson, C. H. Heathcock, J. Org. Chem. 1998, 63, 5001-5012;
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(1998)
J. Org. Chem.
, vol.63
, pp. 5001-5012
-
-
Scott, R.W.1
Epperson, J.2
Heathcock, C.H.3
-
30
-
-
0242705214
-
-
e) D. Compère, C. Marazano, B. C. Das, J. Org. Chem. 1999, 64, 4528-4532.
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(1999)
J. Org. Chem.
, vol.64
, pp. 4528-4532
-
-
Compère, D.1
Marazano, C.2
Das, B.C.3
-
31
-
-
0000170052
-
-
3) in the presence of 15 mg of (S)-(+)-2,2,2-trifluoro-1-(9-anthryl)ethanol. For this analytical procedure, see: a) W. H. Pirkle, D. L. Sikkenga, J. Org. Chem. 1977, 42, 1370-1374;
-
(1977)
J. Org. Chem.
, vol.42
, pp. 1370-1374
-
-
Pirkle, W.H.1
Sikkenga, D.L.2
-
33
-
-
0004047923
-
-
note
-
Structures were set up with standard bond lengths and angles by using the Chem-X molecular modeling package, version Jan97. All structures were initially optimized by using the steepest descents and conjugate gradient methods. After semiempirical optimization with the MOPAC program (version 6.0), charge distributions were calculated with the aid of the AM1 method. The PULAY keyword and the eigenvector following the (EF) routine for minimum search with GNORM = 0.1 were used in the optimization step. Conformation analysis was performed with full AM1 optimization. All calculations were performed on a Digital Alpha Station 300.
-
-
-
-
34
-
-
0026029281
-
-
This diagnostic rule fits with the NMR data of all N-substituted derivatives synthesized in this work. N-Tosylated cis-2-carboxyoctahydroindoles follow the same pattern: A. Nuhrich, J. Moulines, Tetrahedron 1991, 47, 3075-3088.
-
(1991)
Tetrahedron
, vol.47
, pp. 3075-3088
-
-
Nuhrich, A.1
Moulines, J.2
-
35
-
-
0001027285
-
-
N-unsubstituted cis-2-carboxyoctahydroindoles follow an inverse rule, showing the exo derivatives as triplets and endo compounds as doublets of doublets (≈ 10, 4 Hz) for H-2: a) R. Henning, H. Urbach, Tetrahedron Lett. 1983, 24, 5339-5342;
-
(1983)
Tetrahedron Lett.
, vol.24
, pp. 5339-5342
-
-
Henning, R.1
Urbach, H.2
-
36
-
-
0026462829
-
-
b) M. Vincent, B. Marchand, G. Rémond, S. Jaguelin-Guinamant, G. Damien, B. Portevin, J.-Y. Baumal, J.-P. Volland, J.-P. Bouchet, J.-H. Lambert, B. Serkiz, W. Luitjen, M. Laubie, P. Schiaci, Drug Des. and Discovery 1992, 9, 11-28;
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(1992)
Drug Des. and Discovery
, vol.9
, pp. 11-28
-
-
Vincent, M.1
Marchand, B.2
Rémond, G.3
Jaguelin-Guinamant, S.4
Damien, G.5
Portevin, B.6
Baumal, J.-Y.7
Volland, J.-P.8
Bouchet, J.-P.9
Lambert, J.-H.10
Serkiz, B.11
Luitjen, W.12
Laubie, M.13
Schiaci, P.14
-
37
-
-
0028940303
-
-
c) S. G. Pyne, A. Javidan, B. W. Skelton, A. H. White, Tetrahedron 1995, 51, 5157-5168.
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(1995)
Tetrahedron
, vol.51
, pp. 5157-5168
-
-
Pyne, S.G.1
Javidan, A.2
Skelton, B.W.3
White, A.H.4
-
39
-
-
33847597065
-
-
[11a]
-
[11a]
-
-
-
-
43
-
-
33847593862
-
-
Alkene 24 is formed as a by-product
-
Alkene 24 is formed as a by-product.
-
-
-
-
44
-
-
0033605760
-
-
For some recent contributions about facial diastereoselection in cyclohexanones, see: a) S. Tomoda, T. Senju, Tetrahedron 1999, 55, 3871-3882;
-
(1999)
Tetrahedron
, vol.55
, pp. 3871-3882
-
-
Tomoda, S.1
Senju, T.2
-
45
-
-
0033615592
-
-
b) T. Laube, J. Org. Chem. 1999, 64, 8177-8182;
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(1999)
J. Org. Chem.
, vol.64
, pp. 8177-8182
-
-
Laube, T.1
-
47
-
-
0027410768
-
-
For a detailed mechanism for this type of alkylation processes, see: X. Fu, J. M. Cook, J. Org. Chem. 1993, 58, 661-672.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 661-672
-
-
Fu, X.1
Cook, J.M.2
-
48
-
-
33847580377
-
-
In some runs, this compound appears to be partially trifluoroacetylated at the Choi oxygen, but this is not a synthetic problem since the trifluoroacetate is cleaved before the last coupling, in the saponification step
-
In some runs, this compound appears to be partially trifluoroacetylated at the Choi oxygen, but this is not a synthetic problem since the trifluoroacetate is cleaved before the last coupling, in the saponification step.
-
-
-
-
49
-
-
0032581676
-
-
Z. Wang, B. La, J. M. Fortunak, X.-J Meng, G. W. Kabalka, Tetrahedron Lett. 1998, 39, 5501-5504.
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(1998)
Tetrahedron Lett.
, vol.39
, pp. 5501-5504
-
-
Wang, Z.1
La, B.2
Fortunak, J.M.3
Meng, X.-J.4
Kabalka, G.W.5
-
50
-
-
33847580746
-
-
[2e] by diazotation of 4-amino-D-phenylalanine in 31% yield
-
[2e] by diazotation of 4-amino-D-phenylalanine in 31% yield.
-
-
-
-
52
-
-
33845374692
-
-
A slight excess of the reducing agent induces the cleavage of the Choi-Leu amide bond. See: K. Soai, A. Ookawa, J. Org. Chem. 1986, 51, 4000-4005.
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(1986)
J. Org. Chem.
, vol.51
, pp. 4000-4005
-
-
Soai, K.1
Ookawa, A.2
-
53
-
-
33847573524
-
-
note
-
25 = +22.3. We are unable to comment on the significance of this discrepancy, except to note that our sample was a hydrochloride salt while the natural product had been isolated as a trifluoroacetate salt.
-
-
-
-
54
-
-
0033592497
-
-
For the role of proline cis-trans isomerization, see: T. P. Curran, L. A. Marcaurelle, K. O'Sullivan, Org. Lett. 1999, 1, 1225-1228 and references therein.
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(1999)
Org. Lett.
, vol.1
, pp. 1225-1228
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-
Curran, T.P.1
Marcaurelle, L.A.2
O'Sullivan, K.3
-
55
-
-
0030461902
-
-
For steric effects on the amide isomer equilibrium of prolyl peptides, see: E. Beausoleil, W. D. Lubell, J. Am. Chem. Soc. 1996, 118, 12 902-12 908.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 12902-12908
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Beausoleil, E.1
Lubell, W.D.2
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56
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0032573847
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B. Sandler, M. Murakami, J. Clardy, J. Am. Chem. Soc. 1998, 120, 595-596.
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J. Am. Chem. Soc.
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, pp. 595-596
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Sandler, B.1
Murakami, M.2
Clardy, J.3
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57
-
-
0025328906
-
-
a) S. Bajusz, E. Szell, D. Bagdy, E. Barabas, G. Horvath, M. Dioszegi, Z. Fittler, G. Szabo, A. Juhasz, E. Tomori, G. Szilagyi, J. Med. Chem. 1990, 33, 1729-1735;
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J. Med. Chem.
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Bajusz, S.1
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Horvath, G.5
Dioszegi, M.6
Fittler, Z.7
Szabo, G.8
Juhasz, A.9
Tomori, E.10
Szilagyi, G.11
-
58
-
-
0028879303
-
-
b) M. R. Wiley, N. Y. Chirgadze, D. K. Clawson, T. J. Craft, D. S. Gifford-Moore, N. D. Jones, J. L. Olkowski, A. L. Schacht, L. C. Weir, G. F. Smith, Bioorg. Med. Chem. Lett. 1995, 5, 2835-2840.
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Wiley, M.R.1
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Gifford-Moore, D.S.5
Jones, N.D.6
Olkowski, J.L.7
Schacht, A.L.8
Weir, L.C.9
Smith, G.F.10
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59
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0034615130
-
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S. Hanessian, E. Balaux, D. Musil, L. L. Olsson, I. Nilsson, Bioorg. Med. Chem. Lett. 2000, 10, 243-247.
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Bioorg. Med. Chem. Lett.
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Hanessian, S.1
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62
-
-
33847584759
-
-
b) W. Siedel, K. Sturm, R. Geiger, Chem. Ber. 1963, 96, 1636-1440.
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(1963)
Chem. Ber.
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-
-
Siedel, W.1
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Geiger, R.3
-
63
-
-
33847598812
-
-
Mixtures of exo- and endo-9 and their corresponding dimethyl acetals were observed by NMR during this stage
-
Mixtures of exo- and endo-9 and their corresponding dimethyl acetals were observed by NMR during this stage.
-
-
-
-
64
-
-
33847592150
-
-
2/EtOAc (9:1), small quantities (<3% yield) of a trans isomer were isolated
-
2/EtOAc (9:1), small quantities (<3% yield) of a trans isomer were isolated.
-
-
-
-
65
-
-
33847585799
-
-
For analytical data see Supporting Information
-
For analytical data see Supporting Information.
-
-
-
-
66
-
-
33847606858
-
-
The optical rotation value corresponds to that of a sample obtained from the recrystallyzed Hpla derivative 34 (ee >98%)
-
The optical rotation value corresponds to that of a sample obtained from the recrystallyzed Hpla derivative 34 (ee >98%).
-
-
-
|