Subscribe to RSS
DOI: 10.1055/s-2006-944225
Synthetic Studies towards (-)-Lemonomycin, Synthesis of Fused Tetracycles
Publication History
Publication Date:
04 July 2006 (online)
Abstract
The asymmetric synthesis of 1,3-lactol-bridged tetrahydroisoquinoline 5 is developed. Subsequent cyclization of 5 under acidic conditions leads to the formation of a tricyclic enamide 22, which is in turn converted to a tetracyclic compound 23.
Key words
amino acid - lemonomycin - tetrahydroisoquinoline - Mannich rection - intramolecular Pictet-Spengler reaction
-
1a
Scott JD.Williams RM. Chem. Rev. 2002, 102: 1669 -
1b
Arai T.Kubo A. The Alkaloids Vol. 21:Brossi A. Academic Press; New York: 1983. p.55-100 -
1c
Fukuyama T. Adv. Heterocycl. Nat. Prod. Synth. 1992, 2: 189 -
1d
Ozturk T. The Alkaloids Vol. 53:Brossi A. Academic Press; New York: 2000. p.119-238 - 2
Whaley HA.Patterson EL.Dann M.Shay AJ.Porter JN. Antimicrob. Agents Chemother. 1964, 8: 83 - 3
He H.Shen B.Carter GT. Tetrahedron Lett. 2000, 41: 2067 - 4
Ashley ER.Cruz EG.Stoltz BM. J. Am. Chem. Soc. 2003, 125: 15000 - 5
Rikimaru K.Mori K.Kan T.Fukuyama T. Chem. Commun. 2005, 394 - 6
Magnus P.Matthews KS. J. Am. Chem. Soc. 2005, 127: 12476 - 7
Chen J.Chen X.Bois-Choussy M.Zhu J. J. Am. Chem. Soc. 2006, 128: 87 - For other total syntheses, see:
-
8a
Corey EJ.Gin DY.Kania RS. J. Am. Chem. Soc. 1996, 118: 9202 -
8b
Endo A.Yanagisawa A.Abe M.Tohma S.Kan T.Fukuyama T. J. Am. Chem. Soc. 2002, 124: 2545 -
8c For a formal total synthesis, see:
Zheng S.Chan C.Furuuchi T.Wright BJD.Zhou B.Guo J.Danishefsky SJD. Angew. Chem. Int. Ed. 2006, 45: 1754 - 8d For a hemisynthesis, see: Cuevas C., Pérez M., Martin M. J., Chicharro J. L., Fernandez-Rivas C., Flores M., Francesch A., Gallego P., Zarzuelo M., De La Calle F., Garcia J., Polanco C., Rodriguez I., Manzanares I.; Org. Lett.; 2000, 2: 2545
- 9
Couturier C.Liron M.Schlama T.Zhu J. Synlett 2005, 851 -
10a
Godfrey IM.Sargent MV.Elix JA. J. Chem. Soc., Perkin Trans. 1 1974, 1353 -
10b
Luly JR.Rapoport H. J. Org. Chem. 1981, 46: 2745 -
10c
Fukuyama T.Sachleben RA. J. Am. Chem. Soc. 1982, 104: 4957 -
10d
Fukuyama T.Yang L.Ajeck KL.Sachleben RA. J. Am. Chem. Soc. 1990, 112: 3712 -
10e
Myers AG.Kung DW. J. Am. Chem. Soc. 1999, 121: 10828 -
11a
Corey EJ.Bo Y.Busch-Petersen J. J. Am. Chem. Soc. 1998, 120: 13000 -
11b
Corey EJ.Noe MC.Xu F. Tetrahedron Lett. 1998, 39: 5347 -
11c
Corey EJ.Xu F.Noe MC. J. Am. Chem. Soc. 1997, 119: 12414 -
12a
Lygo B. Tetrahedron Lett. 1999, 40: 1389 -
12b
Lygo B.Crosby J.Peterson JA. Tetrahedron Lett. 1999, 40: 1385 -
12c
Lygo B.Wainwright PG. Tetrahedron Lett. 1997, 38: 8595 -
13a
Trost BM.Bunt RC.Pulley SR. J. Org. Chem. 1994, 59: 4202 -
13b
Trost BM.Surivet J.-P. J. Am. Chem. Soc. 2000, 122: 6291 -
14a
Kurihara H.Mishima H. Tetrahedron Lett. 1982, 23: 3639 -
14b
Martinez EJ.Corey EJ. Org. Lett. 2000, 2: 993 -
14c
Todd MH.Ndubaku C.Bartlett PA. J. Org. Chem. 2002, 67: 3985 -
15a
Carpino LA. J. Am. Chem. Soc. 1993, 115: 4397 -
15b
Carpino LA.Imazumi H.El-Faham A.Ferrer FJ.Zhang C.Lee Y.Foxman BM.Henklein P.Hanay C.Mügge C.Wenschuh H.Klose J.Beyermann M.Bienert M. Angew. Chem. Int. Ed. 2002, 41: 442 -
16a
Brown HC.Shoaf CJ. J. Am. Chem. Soc. 1964, 86: 1079 -
16b
Brown HC.Garg CP. J. Am. Chem. Soc. 1964, 86: 1085 -
16c
Brown HC.Tsukamoto A. J. Am. Chem. Soc. 1964, 86: 1089 -
17a
Saito H.Hirata T. Tetrahedron Lett. 1987, 28: 4065 -
17b
Malmberg M.Nyberg K. J. Chem. Soc., Chem. Commun. 1979, 167 -
17c
Kraus GA.Neuenschwander K. Tetrahedron Lett. 1980, 21: 3841 - 19
Chen X.Chen J.De Paolis M.Zhu J. J. Org. Chem. 2005, 70: 4397 - 21
Baldwin JE. J. Chem. Soc., Chem. Commun. 1976, 734
References and Notes
For successful cyclization using enolate chemisty in related system, see ref. 6 and 17a.
20Compound 23: [α]D 25 +37.1 (c 0.04, CHCl3). IR (CHCl3): 3623, 3025, 3017, 2975, 2928, 1727, 1455, 1391, 1260, 1201, 1046 cm-1. 1H NMR (600 MHz, CDCl3): δ = 8.01 (d, J = 2.2 Hz, 1 H), 5.87 (s, 1 H), 4.75 (dd, 1 H, J = 2.2, 8.5 Hz), 4.46 (d, 1 H, J = 2.0 Hz), 3.95 (br d, 1 H, J = 11.5 Hz), 3.70 (s, 3 H), 3.68 (m, 1 H), 3.65 (m, 1 H), 3.64 (s, 3 H), 3.45 (m, 1 H), 3.11 (dd, 1 H, J = 1.7, 12.1 Hz), 2.41 (br d, 1 H, J = 12.1 Hz), 2.14 (s, 3 H), 1.87 (dt, 1 H, J = 3.7, 13.1 Hz), 1.82 (m, 1 H), 1.41 (br d, 1 H, J = 13.9 Hz) ppm. 13C NMR (300 MHz, CDCl3): δ = 159.0, 145.4, 141.0, 130.7, 123.4, 121.8, 100.3, 83.8, 67.3, 62.6, 61.6, 61.1, 57.4, 30.4, 20.5, 9.6 ppm. HRMS (ESI): m/z cacld for C19H24N2O5 + H+: 361.1763; found: 361.1756.