-
3
-
-
33750169623
-
-
Stuetz A., Baumann K., Grassberger M., Wolff K., and Meingassner J.G. Int. Arch. Allergy Immunol. 141 (2006) 199-212
-
(2006)
Int. Arch. Allergy Immunol.
, vol.141
, pp. 199-212
-
-
Stuetz, A.1
Baumann, K.2
Grassberger, M.3
Wolff, K.4
Meingassner, J.G.5
-
8
-
-
66749152970
-
-
Baumann, K.; Emmer, G. E.P. 0, 427, 680, A1, 1991.
-
Baumann, K.; Emmer, G. E.P. 0, 427, 680, A1, 1991.
-
-
-
-
9
-
-
0242551132
-
-
Baumann K., Bacher M., Damont A., Högenauer K., and Steck A. Tetrahedron 59 (2003) 10075-10087
-
(2003)
Tetrahedron
, vol.59
, pp. 10075-10087
-
-
Baumann, K.1
Bacher, M.2
Damont, A.3
Högenauer, K.4
Steck, A.5
-
11
-
-
33845279035
-
-
Wang Y.F., Lalonde J.J., Momongan M., Bergbreiter D.E., and Wong C.-H. J. Am. Chem. Soc. 110 (1988) 7200-7205
-
(1988)
J. Am. Chem. Soc.
, vol.110
, pp. 7200-7205
-
-
Wang, Y.F.1
Lalonde, J.J.2
Momongan, M.3
Bergbreiter, D.E.4
Wong, C.-H.5
-
12
-
-
66749129424
-
-
note
-
+.
-
-
-
-
13
-
-
66749104911
-
-
Patent 0, 464, 895, A2, 1992. The 32-acetylation was performed with acetic anhydride in benzene and the yields were in the range of 20-30
-
Petuch, B. R.; Chen, S.-S. T.; Arison, B. H. E.P. Patent 0, 464, 895, A2, 1992. The 32-acetylation was performed with acetic anhydride in benzene and the yields were in the range of 20-30%.
-
-
-
Petuch, B.R.1
Chen, S.-S.T.2
Arison, B.H.E.P.3
-
14
-
-
66749094519
-
-
note
-
Tacrolimus is the 21-allyl analogue of ascomycin.
-
-
-
-
15
-
-
66749112699
-
-
note
-
+.
-
-
-
-
16
-
-
66749175552
-
-
note
-
+.
-
-
-
-
17
-
-
0027441751
-
-
Or Y.S., Clark R.F., Xie Q., McAlpine J., Whittern D.N., Henry R., and Luly J.R. Tetrahedron 49 (1993) 8771-8786
-
(1993)
Tetrahedron
, vol.49
, pp. 8771-8786
-
-
Or, Y.S.1
Clark, R.F.2
Xie, Q.3
McAlpine, J.4
Whittern, D.N.5
Henry, R.6
Luly, J.R.7
-
19
-
-
66749151151
-
-
note
-
+.
-
-
-
-
20
-
-
0027996038
-
-
Zimmer R., Grassberger M.A., Baumann K., Schulz G., and Haidl E. Tetrahedron 50 (1994) 13655-13670
-
(1994)
Tetrahedron
, vol.50
, pp. 13655-13670
-
-
Zimmer, R.1
Grassberger, M.A.2
Baumann, K.3
Schulz, G.4
Haidl, E.5
-
23
-
-
66749169666
-
-
note
-
+.
-
-
-
-
24
-
-
66749099293
-
-
note
-
24-O-tert-Butyldimethylsilyl-ascomycin 4. Removal of 32-acetate was realized in the same conditions utilized for preparation of 24-O-acetyl-ascomycin 7 from corresponding 24,32-diacetate 6. Chemical-physical data of 4 are in agreement with those reported in literature (Ref. 5).
-
-
-
-
25
-
-
66749142150
-
-
note
-
The same transformation was successfully (73%) realized also with dichlorotriphenylphosphorane (Grassberger, M.; Horvath, A. WO 040111 A2, 2006) not applicable, on the contrary, in the case of 24-monoacetate 7 for the formation of a complex mixture.
-
-
-
-
26
-
-
0030931957
-
-
note
-
PTSA is reported (Ok, H. O.; Szumiloski, J. L., Beattie, T. R.; Goulet, M. T. Bioorg. Med. Chem. Lett. 1997, 7, 2199-2204) to selectively remove the 32-silyl group from 24,32-disilyl derivative. In this case, we observed that lower temperatures (10-15 °C instead of 25-30 °C) and shorter times (20 h instead of 72 h) were required.
-
-
-
-
27
-
-
66749167426
-
-
note
-
13C NMR data were in agreement with the reported ones (Dosenbach, C.; Grassberger, M.; Hartmann, O.; Horvath, A,; Mutz, J.-P.; Penn, G.; Pfeffer, S.; Wieckhusen, D. WO 01458, 1999).
-
-
-
-
28
-
-
0032747298
-
-
23-ascomycin:
-
23-ascomycin:. Wiedeman P.E., Fesik S.W., Petros A.M., Nettesheim D.G., Mollison K.W., Lane B.C., Or Y.S., and Luly J.R. J. Med. Chem. 42 (1999) 4456-4461
-
(1999)
J. Med. Chem.
, vol.42
, pp. 4456-4461
-
-
Wiedeman, P.E.1
Fesik, S.W.2
Petros, A.M.3
Nettesheim, D.G.4
Mollison, K.W.5
Lane, B.C.6
Or, Y.S.7
Luly, J.R.8
-
29
-
-
66749111026
-
-
note
-
+; pimecrolimus (exact mass 809.4) spectrum shows the main peak at 832.4 m/z.
-
-
-
-
30
-
-
66749127064
-
-
note
-
13C NMR spectra.
-
-
-
-
31
-
-
66749173275
-
-
note
-
3 singlet (3.46 and 3.44), H-32 (3.68, major and minor rotamers).
-
-
-
|