-
1
-
-
0342536363
-
-
Isolation
-
(a) Isolation: Morrison, R. I. Biochem J. 1953, 53, 474.
-
(1953)
Biochem J.
, vol.53
, pp. 474
-
-
Morrison, R.I.1
-
2
-
-
85027473227
-
-
Racemic synthesis
-
(b) Racemic synthesis: Ladenburg, A. Ber. 1891, 24, 640.
-
(1891)
Ber.
, vol.24
, pp. 640
-
-
Ladenburg, A.1
-
3
-
-
84943852586
-
-
First resolution
-
(c) First resolution: Mende, F. Ber Dtsch. Chem. Ges. 1896, 29, 2887.
-
(1896)
Ber Dtsch. Chem. Ges.
, vol.29
, pp. 2887
-
-
Mende, F.1
-
4
-
-
0025118253
-
-
For biosynthetic studies, see: (a) Wickwire, B. M.; Harris, C. M.; Harris, T. M.; Broquist, H. P. J. Biol. Chem. 1990, 265, 14742.
-
(1990)
J. Biol. Chem.
, vol.265
, pp. 14742
-
-
Wickwire, B.M.1
Harris, C.M.2
Harris, T.M.3
Broquist, H.P.4
-
5
-
-
0030793060
-
-
and references cited therein.
-
(b) Zabriskie, T. M.; Kelly, W. L.; Liang, X. J. Am. Chem. Soc. 1997, 119, 6446 and references cited therein.
-
(1997)
J. Am. Chem. Soc.
, vol.119
, pp. 6446
-
-
Zabriskie, T.M.1
Kelly, W.L.2
Liang, X.3
-
6
-
-
0025161861
-
-
Pastuszak, I.; Molyneux, R. J.; James, L. F.; Elbein, A. D. Biochemistrv 1990, 29, 1886.
-
(1990)
Biochemistrv
, vol.29
, pp. 1886
-
-
Pastuszak, I.1
Molyneux, R.J.2
James, L.F.3
Elbein, A.D.4
-
7
-
-
0014240342
-
-
Portoghese, P. S.; Pazdemik, T. L.; Kuhn, W. L.; Hite, G.; Shafi'ee, A. J. Med. Chem. 1968, 11, 12.
-
(1968)
J. Med. Chem.
, vol.11
, pp. 12
-
-
Portoghese, P.S.1
Pazdemik, T.L.2
Kuhn, W.L.3
Hite, G.4
Shafi'Ee, A.5
-
8
-
-
0023264587
-
-
Tanaka, H.; Kuroda, A.; Marusawa, H.; Hatanaka, H.; Kino, T.; Goto, T.; Hashimoto, M.; Taga, T. J. Am. Chem. Soc. 1987, 109, 5031.
-
(1987)
J. Am. Chem. Soc.
, vol.109
, pp. 5031
-
-
Tanaka, H.1
Kuroda, A.2
Marusawa, H.3
Hatanaka, H.4
Kino, T.5
Goto, T.6
Hashimoto, M.7
Taga, T.8
-
9
-
-
0001748925
-
-
Swindells, D. C. N.; White, P. S.; Findlay, J. A. Can. J. Chem. 1978, 56, 2491.
-
(1978)
Can. J. Chem.
, vol.56
, pp. 2491
-
-
Swindells, D.C.N.1
White, P.S.2
Findlay, J.A.3
-
10
-
-
0002241366
-
-
For reviews, see: (a)
-
For reviews, see: (a) Agami, C.; Couty, F.; Puchot-Kadouri, C. Synlett 1998, 449.
-
(1998)
Synlett
, pp. 449
-
-
Agami, C.1
Couty, F.2
Puchot-Kadouri, C.3
-
15
-
-
0344622546
-
-
(a) Ng-Youn-Chen, M. C.; Serreqi, A. N.; Huang, Q.; Kazlauskas, R. J. Ogr. Chem. 1994, 59, 2075.
-
(1994)
J. Ogr. Chem.
, vol.59
, pp. 2075
-
-
Ng-Youn-Chen, M.C.1
Serreqi, A.N.2
Huang, Q.3
Kazlauskas, R.4
-
18
-
-
6644230592
-
-
(d) Kim, C.-S.; Lee, I.-S.; Chung, N.; Bang, W.-G. J. Microbiol. Biotechnol. 2001, 11, 217.
-
(2001)
J. Microbiol. Biotechnol.
, vol.11
, pp. 217
-
-
Kim, C.-S.1
Lee, I.-S.2
Chung, N.3
Bang, W.-G.4
-
19
-
-
0037170579
-
-
(e) Liljeblad, A.; Lindborg, J.; Kanerva, A.; Katajisto, J.; Kanerva, L. T. Tetrahedron Lett. 2002, 43, 2471.
-
(2002)
Tetrahedron Lett.
, vol.43
, pp. 2471
-
-
Liljeblad, A.1
Lindborg, J.2
Kanerva, A.3
Katajisto, J.4
Kanerva, L.T.5
-
20
-
-
13844250401
-
-
(f) Watanabe, L. A.; Haranaka, S.; Jose, B.; Yoshida, M.; Kato, T.; Morigushi, M.; Soda, K.; Nishino, N. Tetrahedron: Asymmetry 2005, 16, 903.
-
(2005)
Tetrahedron: Asymmetry
, vol.16
, pp. 903
-
-
Watanabe, L.A.1
Haranaka, S.2
Jose, B.3
Yoshida, M.4
Kato, T.5
Morigushi, M.6
Soda, K.7
Nishino, N.8
-
21
-
-
0000850372
-
-
(a) Fujii, T.; Miyoshi, M. Bull. Chem. Soc., Jpn. 1975, 48, 1341.
-
(1975)
Bull. Chem. Soc., Jpn.
, vol.48
, pp. 1341
-
-
Fujii, T.1
Miyoshi, M.2
-
22
-
-
85008110636
-
-
(b) Aketa, K.-i.; Terashima, S.; Yamada, S.-i. Chem. Pharm. Bull. 1976, 24, 621.
-
(1976)
Chem. Pharm. Bull.
, vol.24
, pp. 621
-
-
Aketa, K.-I.1
Terashima, S.2
Yamada, S.-I.3
-
24
-
-
0028124306
-
-
(a) Berrien, J.-F.; Royer, J.; Husson, H.-P. J. Org. Chem. 1994, 59, 3769.
-
(1994)
J. Org. Chem.
, vol.59
, pp. 3769
-
-
Berrien, J.-F.1
Royer, J.2
Husson, H.-P.3
-
25
-
-
0029126361
-
-
(b) Myers, A. G.; Gleason, J. L.; Yoon, T. J. Am. Chem. Soc. 1995, 117, 8488.
-
(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 8488
-
-
Myers, A.G.1
Gleason, J.L.2
Yoon, T.3
-
26
-
-
0034051318
-
-
(c) Agami, C.; Kadouri-Puchot, C.; Kizirian, J.-C. Synth. Commun. 2000, 30, 2565.
-
(2000)
Synth. Commun.
, vol.30
, pp. 2565
-
-
Agami, C.1
Kadouri-Puchot, C.2
Kizirian, J.-C.3
-
27
-
-
28644434528
-
-
(d) Hou, D.-R.; Hung, S.-Y.; Hu, C.-C. Tetrahedron: Asymmetry 2005, 16, 3858.
-
(2005)
Tetrahedron: Asymmetry
, vol.16
, pp. 3858
-
-
Hou, D.-R.1
Hung, S.-Y.2
Hu, C.-C.3
-
28
-
-
33846543769
-
-
(e) Chang, M.-Y.; Kung, Y.-H.; Wu, T.-C. Heterocycles 2006, 68, 2365.
-
(2006)
Heterocycles
, vol.68
, pp. 2365
-
-
Chang, M.-Y.1
Kung, Y.-H.2
Wu, T.-C.3
-
30
-
-
38349168983
-
-
(g) Chattopadhyay, S. K.; Biswas, T.; Biswas, T. Tetrahedron Lett. 2008, 49, 1365.
-
(2008)
Tetrahedron Lett.
, vol.49
, pp. 1365
-
-
Chattopadhyay, S.K.1
Biswas, T.2
Biswas, T.3
-
34
-
-
0034719260
-
-
(d) Wilkinson, T. J.; Stehle, N. W.; Beak, P. Org. Lett. 2000, 2, 155.
-
(2000)
Org. Lett.
, vol.2
, pp. 155
-
-
Wilkinson, T.J.1
Stehle, N.W.2
Beak, P.3
-
35
-
-
0034624418
-
-
(e) Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762.
-
(2000)
J. Am. Chem. Soc.
, vol.122
, pp. 762
-
-
Ishitani, H.1
Komiyama, S.2
Hasegawa, Y.3
Kobayashi, S.4
-
36
-
-
0037035626
-
-
(f) Teoh, E.; Campi, E. M.; Jackson, W. R.; Robinson, A. J. Chem. Commun. 2002, 978.
-
(2002)
J. Chem. Commun.
, vol.978
-
-
Teoh, E.1
Campi, E.M.2
Jackson, W.R.3
Robinson, A.4
-
37
-
-
0037185570
-
-
(g) Ginesta, X.; Pericas, M. A.; Riera, A. Tetrahedron Lett. 2002, 43, 779.
-
(2002)
Tetrahedron Lett.
, vol.43
, pp. 779
-
-
Ginesta, X.1
Pericas, M.A.2
Riera, A.3
-
38
-
-
0037424806
-
-
(h) Rogers L. M-A.; Rouden, J.; Lecomte, L.; Lane, M.-C. Tetrahedron Lett. 2003, 44, 3047.
-
(2003)
Tetrahedron Lett.
, vol.44
, pp. 3047
-
-
Rogers, L.M.-A.1
Rouden, J.2
Lecomte, L.3
Lane, M.-C.4
-
39
-
-
0037530024
-
-
(a) Calmes, M.; Escale, F.; Rolland, M.; Martinez, J. Tetrahedron: Asymmetry 2003, 14, 1685.
-
(2003)
Tetrahedron: Asymmetry
, vol.14
, pp. 1685
-
-
Calmes, M.1
Escale, F.2
Rolland, M.3
Martinez, J.4
-
40
-
-
70450175270
-
-
(b) Martin, J.; Plaquevent, J.-C; Maddaluno, J.; Rouden, J.; Lasne, M.-C. Eur. J. org. Chem. 2009, 5414.
-
(2009)
Eur. J. Org. Chem.
, vol.5414
-
-
Martin, J.1
Plaquevent, J.-C.2
Maddaluno, J.3
Rouden, J.4
Lasne, M.-C.5
-
41
-
-
24944559389
-
-
(a) Aroyan, C. E.; Vasbinder, M. M.; Miller, S. J. Org. Lett. 2005, 7, 3849.
-
(2005)
J. Org. Lett.
, vol.7
, pp. 3849
-
-
Aroyan, C.E.1
Vasbinder, M.M.2
Miller, S.3
-
42
-
-
33644965942
-
-
(b) Cheong, P. H.-Y.; Zhang, H.; Thayumanavan, R.; Tanaka, F.; Houk, K. N.; Barbas, C. F. Org. Lett. 2006, 8, 811.
-
(2006)
Org. Lett.
, vol.8
, pp. 811
-
-
Cheong, P.H.-Y.1
Zhang, H.2
Thayumanavan, R.3
Tanaka, F.4
Houk, K.N.5
Barbas, C.F.6
-
43
-
-
65549142973
-
-
For the utilization of L-pipecohc acid N-oxides derivatives as ligands in the indiumcatalyzed allylation of ketones, see
-
(c) Yoshimura, Y.; Ohara, C.; Miyagawa, T.; Takahata, H. Heterocycles 2009, 77, 635. For the utilization of L-pipecohc acid N-oxides derivatives as ligands in the indiumcatalyzed allylation of ketones, see:
-
(2009)
Heterocycles
, vol.77
, pp. 635
-
-
Yoshimura, Y.1
Ohara, C.2
Miyagawa, T.3
Takahata, H.4
-
44
-
-
34447297533
-
-
(d) Zhang, X.; Chen, D.; Liu, X.; Feng, X. J. Org. Chem. 2007, 72, 5227.
-
(2007)
J. Org. Chem.
, vol.72
, pp. 5227
-
-
Zhang, X.1
Chen, D.2
Liu, X.3
Feng, X.4
-
46
-
-
0027404924
-
-
(b) Knight, D. W.; Lewis, N.; Share, A. C.; Haigh, D. Tetrahedron: Asymmetrv 1993, 4, 625.
-
(1993)
Tetrahedron: Asymmetrv
, vol.4
, pp. 625
-
-
Knight, D.W.1
Lewis, N.2
Share, A.C.3
Haigh, D.4
-
47
-
-
0029990158
-
-
(c) Greek, C.; Ferreira, F.; Genet, J. P. Tetrahedron Lett. 1996, 37, 2031.
-
(1996)
Tetrahedron Lett.
, vol.37
, pp. 2031
-
-
Greek, C.1
Ferreira, F.2
Genet, J.P.3
-
48
-
-
0029897160
-
-
(d) Agami, C.; Couty, F.; Mathieu, H. Tetrahedron Lett. 1996, 37, 4001.
-
(1996)
Tetrahedron Lett.
, vol.37
, pp. 4001
-
-
Agami, C.1
Couty, F.2
Mathieu, H.3
-
49
-
-
0030828305
-
-
(e) Battistini, L.; Zanardi, F.; Rassu, G.; Spanu, P.; Pelosi, G.; Fava, G. G.; Ferrari, M. B.; Casiraghi, G. Tetrahedron: Asymmetry 1997, 8, 2975.
-
(1997)
Tetrahedron: Asymmetry
, vol.8
, pp. 2975
-
-
Battistini, L.1
Zanardi, F.2
Rassu, G.3
Spanu, P.4
Pelosi, G.5
Fava, G.G.6
Ferrari, M.B.7
Casiraghi, G.8
-
50
-
-
0032575194
-
-
(f) Scott, J. D.; Tippie, T. N.; Williams, R. M. Tetrahedron Lett. 1998, 39, 3659.
-
(1998)
Tetrahedron Lett.
, vol.39
, pp. 3659
-
-
Scott, J.D.1
Tippie, T.N.2
Williams, R.M.3
-
52
-
-
0033553450
-
-
(h) Horikawa, M.; Busch-Peterson, J.; Corey, E. J. Tetrahedron Lett. 1999, 40, 3843.
-
(1999)
Tetrahedron Lett.
, vol.40
, pp. 3843
-
-
Horikawa, M.1
Busch-Peterson, J.2
Corey, E.J.3
-
59
-
-
0032886777
-
-
For the synthesis of febrifugme, see: (a) For synthesis of other relevant trans-2-substituted-3-hydroxypiperidines, see
-
For the synthesis of febrifugme, see: (a) Kobayashi, S.; Ueno, M.; Suzuki, R.; Ishitani, H.; Kim, H.-S.; Wataya, Y. J. J. Org: Ctem. 1999, 64, 6833. For synthesis of other relevant trans-2-substituted-3-hydroxypiperidines, see:
-
(1999)
J. Org: Ctem.
, vol.64
, pp. 6833
-
-
Kobayashi, S.1
Ueno, M.2
Suzuki, R.3
Ishitani, H.4
Kim, H.-S.5
Wataya, Y.J.6
-
60
-
-
0032542168
-
-
(b) Calvez, O.; Chiaroni, A.; Langlois, N. Tetrahedron Lett. 1998, 39, 9447.
-
(1998)
Tetrahedron Lett.
, vol.39
, pp. 9447
-
-
Calvez, O.1
Chiaroni, A.2
Langlois, N.3
-
61
-
-
0037134282
-
-
(c) Enders, D.; Noite, B.; Runsink, J. Tetrahedron: Asymmetry 2002, 13, 587.
-
(2002)
Tetrahedron: Asymmetry
, vol.13
, pp. 587
-
-
Enders, D.1
Noite, B.2
Runsink, J.3
-
63
-
-
77949825507
-
-
Colegate, S. M.; Dorling, P. R.; Huxtable, C. R. Aust. J. Chem. 1979, 32, 2251.
-
(1979)
Aust. J. Chem.
, vol.32
, pp. 2251
-
-
Colegate, S.M.1
Dorling, P.R.2
Huxtable, C.R.3
-
64
-
-
0030768259
-
-
For reviews, see: (a)
-
For reviews, see: (a) Hanessian, S.; McNaughton-Smith, G.; Lombart, H.-G.; Lubell, W. D. Tetrahedron 1997, 53, 12789.
-
(1997)
Tetrahedron
, vol.53
, pp. 12789
-
-
Hanessian, S.1
McNaughton-Smith, G.2
Lombart, H.-G.3
Lubell, W.D.4
-
65
-
-
5744233338
-
-
(b) Cowcll, S. M.; Lee, Y. S.; Cain, J. P.; Hruby, V. J. Curr. Med. Chem. 2004, 11, 2785.
-
(2004)
J. Curr. Med. Chem.
, vol.11
, pp. 2785
-
-
Cowcll, S.M.1
Lee, Y.S.2
Cain, J.P.3
Hruby, V.4
-
66
-
-
0035965734
-
-
(a) Charette, A. B.; Grenon, M.; Lemire, A.; Pourashraf, M.; Martel, J. J. Am. Chem. Soc. 2001, 123, 11829.
-
(2001)
J. Am. Chem. Soc.
, vol.123
, pp. 11829
-
-
Charette, A.B.1
Grenon, M.2
Lemire, A.3
Pourashraf, M.4
Martel, J.5
-
68
-
-
6444238793
-
-
(c) Lemire, A.; Grenon, M.; Pourashraf, M.; Charette, A. B. Org. Lett. 2004, 6, 3517.
-
(2004)
Org. Lett.
, vol.6
, pp. 3517
-
-
Lemire, A.1
Grenon, M.2
Pourashraf, M.3
Charette, A.B.4
-
69
-
-
15444361998
-
-
(d) Lemire, A.; Beaudoin, D.; Grenon, M.; Charette, A. B. J. Org. Chem. 2005, 70, 2368.
-
(2005)
J. Org. Chem.
, vol.70
, pp. 2368
-
-
Lemire, A.1
Beaudoin, D.2
Grenon, M.3
Charette, A.B.4
-
71
-
-
28844505658
-
-
(f) Charette, A. B.; Mathieu, S.; Martel, J. Org. Lett. 2005, 7, 5401.
-
(2005)
Org. Lett.
, vol.7
, pp. 5401
-
-
Charette, A.B.1
Mathieu, S.2
Martel, J.3
-
78
-
-
77949840238
-
-
No regio- or diastereocontrol occurs when organohthium reagents are added to N-iminopyridinium salts.
-
No regio- or diastereocontrol occurs when organohthium reagents are added to N-iminopyridinium salts.
-
-
-
-
80
-
-
37049067391
-
-
Cyanide addition to the chiral pyridinium salt 4 was also investigated, with limited, success. Reaction of 4 with trimethylsilyl cyanide in the presence of aluminum chloride resulted in the formation of a new adduct, which proved, too labile for isolation. Chiral amide starting material 3 was recovered, presumably after reversible cyanide liberation and hydrolysis of the pyridinium salt. For related examples, see: (a)
-
Cyanide addition to the chiral pyridinium salt 4 was also investigated, with limited, success. Reaction of 4 with trimethylsilyl cyanide in the presence of aluminum chloride resulted in the formation of a new adduct, which proved, too labile for isolation. Chiral amide starting material 3 was recovered, presumably after reversible cyanide liberation and hydrolysis of the pyridinium salt. For related examples, see: (a) Popp, F. D.; Takeuchi, I.; Kant, J.; Hamada, Y. J. Chem. Soc., Chem. Commun. 1987, 1765.
-
(1987)
Chem. Soc., Chem. Commun.
, pp. 1765
-
-
Popp, F.D.1
Takeuchi, I.2
Kant, J.3
Hamada, Y.J.4
-
82
-
-
2542433188
-
-
For use in hydroxy amino acid synthesis, see
-
(a) Carlsen, P. H. J.; Katsuki, T.; Martin, V. S.; Sharpless, K. B. J. Org. Chem. 1981, 46, 3936. For use in hydroxy amino acid synthesis, see:
-
(1981)
J. Org. Chem.
, vol.46
, pp. 3936
-
-
Carlsen, P.H.J.1
Katsuki, T.2
Martin, V.S.3
Sharpless, K.B.4
-
83
-
-
0000990740
-
-
For use in pipecolic acid derivatives, see
-
(b) Shioiri, T.; Matsuura, F.; Hamada, Y. Pure Appl. Chem. 1994, 66, 2151. For use in pipecolic acid derivatives, see:
-
(1994)
Pure Appl. Chem.
, vol.66
, pp. 2151
-
-
Shioiri, T.1
Matsuura, F.2
Hamada, Y.3
-
86
-
-
77949863728
-
-
See ref 14k.
-
(e) See ref 14k.
-
-
-
-
87
-
-
33846907872
-
-
(f) Kim, I. S.; Oh, J. S.; Zee, O. P.; Jung, Y. H. Tetrahedron 2007, 63, 2622.
-
(2007)
Tetrahedron
, vol.63
, pp. 2622
-
-
Kim, I.S.1
Oh, J.S.2
Zee, O.P.3
Jung, Y.H.4
-
88
-
-
77949792493
-
-
Regioselectivity of 1,2- vs 1,4-addition, > 98:2; diastereoselectivity of addition at C-2, > 98:2.
-
Regioselectivity of 1,2- vs 1,4-addition, > 98:2; diastereoselectivity of addition at C-2, > 98:2.
-
-
-
-
89
-
-
77949794803
-
-
Hydrogenation to piperidine failed when a 2-furyl substituent was present at C-2 on the dihydropyridine, instead of the phenyl group shown. The N-debenzylation process led to the opening of the piperidine ring if a more electron-rich furan was present at C-2.
-
Hydrogenation to piperidine failed when a 2-furyl substituent was present at C-2 on the dihydropyridine, instead of the phenyl group shown. The N-debenzylation process led to the opening of the piperidine ring if a more electron-rich furan was present at C-2.
-
-
-
-
90
-
-
33646032606
-
-
Reduction of the amidine chiral auxiliary is readily accomplished with alane (2.5 h). We used the following procedure for alane preparation: Using DIBAL-H instead of alane required, extensive reaction time in dichloromethane, or refluxing the solution in toluene (4 h) to give similar yield, of product.
-
Reduction of the amidine chiral auxiliary is readily accomplished with alane (2.5 h). We used the following procedure for alane preparation: Finholt, A. E.; Bond, A. C., Jr.; Schlesinger, H. I. J. Am. Chem. Soc.1947, 69, 1199. Using DIBAL-H instead of alane required, extensive reaction time in dichloromethane, or refluxing the solution in toluene (4 h) to give similar yield, of product.
-
(1947)
J. Am. Chem. Soc.
, vol.69
, pp. 1199
-
-
Finholt, A.E.1
Bond Jr., A.C.2
Schlesinger, H.I.3
-
91
-
-
33845471079
-
-
Following this procedure
-
Following this procedure: Hill, R. K.; Prakash, S. R.; Zydowsky, T. M. J. Org. Chem. 1984, 49, 1666.
-
(1984)
J. Org. Chem.
, vol.49
, pp. 1666
-
-
Hill, R.K.1
Prakash, S.R.2
Zydowsky, T.M.3
-
92
-
-
77949831836
-
-
Compound 11 was derived to its methyl ester (lia), which allowed for enantiomeric determination. See the Supporting Information.
-
Compound 11 was derived to its methyl ester (lia), which allowed for enantiomeric determination. See the Supporting Information.
-
-
-
-
93
-
-
85011163958
-
-
For precedents on singlet oxygen HDA with dihydropyridines, see: (a)
-
For precedents on singlet oxygen HDA with dihydropyridines, see: (a) Natsume, M.; Sekine, Y.; Soyagimi, H. Chem. Pharm. Bull. 1978, 26, 2188.
-
(1978)
Chem. Pharm. Bull.
, vol.26
, pp. 2188
-
-
Natsume, M.1
Sekine, Y.2
Soyagimi, H.3
-
94
-
-
0018182711
-
-
(b) Natsume, M.; Wada, M.; Ogawa, M. Chem. Pharm. Bull. 1978, 26, 3364.
-
(1978)
Chem. Pharm. Bull.
, vol.26
, pp. 3364
-
-
Natsume, M.1
Wada, M.2
Ogawa, M.3
-
95
-
-
0002140743
-
-
For a precedent with, hydride reduction of aminal,see
-
(c) Natsume, M.; Sekine, Y.; Ogawa, M.; Soyagimi, H.; Kitagawa, Y. Tetrahedron Lett.1979, 20, 3473. For a precedent with, hydride reduction of aminal,see:
-
(1979)
Tetrahedron Lett.
, vol.20
, pp. 3473
-
-
Natsume, M.1
Sekine, Y.2
Ogawa, M.3
Soyagimi, H.4
Kitagawa, Y.5
-
97
-
-
77949870918
-
-
Singlet oxygen reacted on the less hindered face of the dihydropyridine ring (>98:2 dr), i.e. anti to the 2-phenyl group (which is forced to be axial by the amidine electron-withdrawing group).
-
Singlet oxygen reacted on the less hindered face of the dihydropyridine ring (>98:2 dr), i.e. anti to the 2-phenyl group (which is forced to be axial by the amidine electron-withdrawing group).
-
-
-
-
99
-
-
0032908322
-
-
(b) Yanada, R.; Negoro, N.; Okaniwa, M.; Miwa, Y.; Taga, T.; Yanada, K.; Fujita, T. Synlett 1999, 537.
-
(1999)
Synlett
, vol.537
-
-
Yanada, R.1
Negoro, N.2
Okaniwa, M.3
Miwa, Y.4
Taga, T.5
Yanada, K.6
Fujita, T.7
|