-
2
-
-
33751504918
-
-
Kumar S., Dare L., Vasko-Moser J.A., James I.E., Blake S.M., Rickard D.J., Hwang S.-M., Tomaszek T., Yamashita D.S., Marquis R.W., Oh H., Jeong J.U., Veber D.F., Gowen M., Lark M.W., and Stroup G. Bone 40 (2007) 122
-
(2007)
Bone
, vol.40
, pp. 122
-
-
Kumar, S.1
Dare, L.2
Vasko-Moser, J.A.3
James, I.E.4
Blake, S.M.5
Rickard, D.J.6
Hwang, S.-M.7
Tomaszek, T.8
Yamashita, D.S.9
Marquis, R.W.10
Oh, H.11
Jeong, J.U.12
Veber, D.F.13
Gowen, M.14
Lark, M.W.15
Stroup, G.16
-
3
-
-
67649579655
-
-
PCT Int. Appl. WO 2001070232 A1
-
Cummings, M. D.; Marquis, R. W.; Ru, Y.; Thompson, S. K.; Veber, D. F.; Yamashita, D. S. PCT Int. Appl. WO 2001070232 A1, 2001.
-
(2001)
-
-
Cummings, M.D.1
Marquis, R.W.2
Ru, Y.3
Thompson, S.K.4
Veber, D.F.5
Yamashita, D.S.6
-
4
-
-
67649591644
-
-
For general reviews on ring-closing metathesis
-
For general reviews on ring-closing metathesis:
-
-
-
-
8
-
-
1442360753
-
-
Wiley, Weinheim and references cited therein
-
Grubbs R.H. Handbook of Metathesis (2003), Wiley, Weinheim and references cited therein
-
(2003)
Handbook of Metathesis
-
-
Grubbs, R.H.1
-
9
-
-
2942589152
-
-
For application of ring-closing metathesis in the synthesis of nitrogen-containing heterocycles, see:
-
For application of ring-closing metathesis in the synthesis of nitrogen-containing heterocycles, see:. Deiters A., and Martin S.F. Chem. Rev. 104 (2004) 2199
-
(2004)
Chem. Rev.
, vol.104
, pp. 2199
-
-
Deiters, A.1
Martin, S.F.2
-
10
-
-
33644865031
-
-
For an earlier synthesis of 1 based on C3-C4 disconnection using RCM, see:
-
For an earlier synthesis of 1 based on C3-C4 disconnection using RCM, see:. Yamashita D.S., Marquis R.W., Xie R., Nidamarthy S.D., Oh H.-J., Jeong J.U., Erhard K.F., Ward K.W., Roethke T.J., Smith B.R., Cheng H.-Y., Geng X., Lin F., Offen P.H., Wang B., Nevins N., Head M.S., Haltiwanger R.C., Narducci Sarjeant A.A., Liable-Sands L.M., Zhao B., Smith W.W., Janson C.A., Gao E., Tomaszek T., McQueney M., James I.E., Gress C.J., Zembryki D.L., Lark M.W., and Veber D.F. J. Med. Chem. 49 (2006) 1597
-
(2006)
J. Med. Chem.
, vol.49
, pp. 1597
-
-
Yamashita, D.S.1
Marquis, R.W.2
Xie, R.3
Nidamarthy, S.D.4
Oh, H.-J.5
Jeong, J.U.6
Erhard, K.F.7
Ward, K.W.8
Roethke, T.J.9
Smith, B.R.10
Cheng, H.-Y.11
Geng, X.12
Lin, F.13
Offen, P.H.14
Wang, B.15
Nevins, N.16
Head, M.S.17
Haltiwanger, R.C.18
Narducci Sarjeant, A.A.19
Liable-Sands, L.M.20
Zhao, B.21
Smith, W.W.22
Janson, C.A.23
Gao, E.24
Tomaszek, T.25
McQueney, M.26
James, I.E.27
Gress, C.J.28
Zembryki, D.L.29
Lark, M.W.30
Veber, D.F.31
more..
-
11
-
-
67649576095
-
-
note
-
2 and pyridine. It is therefore necessary to maintain a hydroxyl oxidation state for C3 for the early steps in the retrosynthetic analysis.
-
-
-
-
13
-
-
0001952971
-
-
Ganetsos G., and Barker P.E. (Eds), Marcel Dekker, New York, NY
-
Balannec B., and Hotier G. In: Ganetsos G., and Barker P.E. (Eds). Preparative and Production Scale Chromatography (1993), Marcel Dekker, New York, NY 301
-
(1993)
Preparative and Production Scale Chromatography
, pp. 301
-
-
Balannec, B.1
Hotier, G.2
-
15
-
-
0001389361
-
-
Corey E.J., Posner G.H., Atkinson R.F., Wingard A.K., Halloran D.J., Radzik D.M., and Nash J.J. J. Org. Chem. 54 (1989) 389
-
(1989)
J. Org. Chem.
, vol.54
, pp. 389
-
-
Corey, E.J.1
Posner, G.H.2
Atkinson, R.F.3
Wingard, A.K.4
Halloran, D.J.5
Radzik, D.M.6
Nash, J.J.7
-
16
-
-
0035953314
-
-
Marquis R.W., Ru Y., LoCastro S.M., Zeng J., Yamashita D.S., Oh H.-J., Erhard K.F., Davis L.D., Tomaszek T.A., Tew D., Salyers K., Proksch J., Ward K., Smith B., Levy M., Cummings M.D., Haltiwanger R.C., Trescher G., Wang B., Hemling M.E., Quinn C.J., Cheng H.-Y., Lin F., Smith W.W., Janson C.A., Zhao B., McQueney M.S., D'Alessio K., Lee C.-P., Marzulli A., Dodds R.A., Blake S., Hwang S.-M., James I.E., Gress C.J., Bradley B.R., Lark M.W., Gowen M., and Veber D.F. J. Med. Chem. 44 (2001) 1380
-
(2001)
J. Med. Chem.
, vol.44
, pp. 1380
-
-
Marquis, R.W.1
Ru, Y.2
LoCastro, S.M.3
Zeng, J.4
Yamashita, D.S.5
Oh, H.-J.6
Erhard, K.F.7
Davis, L.D.8
Tomaszek, T.A.9
Tew, D.10
Salyers, K.11
Proksch, J.12
Ward, K.13
Smith, B.14
Levy, M.15
Cummings, M.D.16
Haltiwanger, R.C.17
Trescher, G.18
Wang, B.19
Hemling, M.E.20
Quinn, C.J.21
Cheng, H.-Y.22
Lin, F.23
Smith, W.W.24
Janson, C.A.25
Zhao, B.26
McQueney, M.S.27
D'Alessio, K.28
Lee, C.-P.29
Marzulli, A.30
Dodds, R.A.31
Blake, S.32
Hwang, S.-M.33
James, I.E.34
Gress, C.J.35
Bradley, B.R.36
Lark, M.W.37
Gowen, M.38
Veber, D.F.39
more..
-
19
-
-
0000339580
-
-
For aldol addition reactions of chiral crotonate imides, see:
-
For aldol addition reactions of chiral crotonate imides, see:. Evans D.A., Sjogren E.B., Bartroli J., and Dow R.L. Tetrahedron Lett. 27 (1986) 4957
-
(1986)
Tetrahedron Lett.
, vol.27
, pp. 4957
-
-
Evans, D.A.1
Sjogren, E.B.2
Bartroli, J.3
Dow, R.L.4
-
22
-
-
67649582691
-
-
note
-
In the case of the less hindered des-C7-methyl substrate, the RCM was effected by 1st generation Grubbs catalyst (catalyst loading unspecified), see Ref. 11.
-
-
-
-
24
-
-
33746236970
-
-
Schwab P., France M.B., Ziller J.W., and Grubbs R.H. Angew. Chem., Int. Ed. Engl. 34 (1995) 2039
-
(1995)
Angew. Chem., Int. Ed. Engl.
, vol.34
, pp. 2039
-
-
Schwab, P.1
France, M.B.2
Ziller, J.W.3
Grubbs, R.H.4
-
27
-
-
0035800494
-
-
Fürstner A., Ackermann L., Gabor B., Goddard R., Lehmann C.W., Mynott R., Stelzer F., and Thiel O.R. Chem.-Eur. J. 7 (2001) 3236
-
(2001)
Chem.-Eur. J.
, vol.7
, pp. 3236
-
-
Fürstner, A.1
Ackermann, L.2
Gabor, B.3
Goddard, R.4
Lehmann, C.W.5
Mynott, R.6
Stelzer, F.7
Thiel, O.R.8
-
28
-
-
0035914638
-
-
Fürstner A., Guth O., Düffels A., Seidel G., Liebl M., Gabor B., and Mynott R. Chem.-Eur. J. 7 (2001) 4811
-
(2001)
Chem.-Eur. J.
, vol.7
, pp. 4811
-
-
Fürstner, A.1
Guth, O.2
Düffels, A.3
Seidel, G.4
Liebl, M.5
Gabor, B.6
Mynott, R.7
-
33
-
-
0035356061
-
-
For a similar observation in cyclopentene formation, see:
-
For a similar observation in cyclopentene formation, see:. Crimmins M.T., and Tabet E.A. J. Org. Chem. 66 (2001) 4012
-
(2001)
J. Org. Chem.
, vol.66
, pp. 4012
-
-
Crimmins, M.T.1
Tabet, E.A.2
-
36
-
-
67649573368
-
-
For general reviews on the Curtius reaction, see
-
For general reviews on the Curtius reaction, see:
-
-
-
-
38
-
-
0001290085
-
-
Trost B.M., and Flemming I. (Eds), Pergamon, Oxford
-
Shioiri T. In: Trost B.M., and Flemming I. (Eds). Comprehensive Organic Synthesis Vol. 6 (1991), Pergamon, Oxford 795
-
(1991)
Comprehensive Organic Synthesis
, vol.6
, pp. 795
-
-
Shioiri, T.1
-
39
-
-
33845471613
-
-
Aldol adducts bearing the oxazolidinone moiety have low kinetic acidity due to allylic strain effect, see:
-
Aldol adducts bearing the oxazolidinone moiety have low kinetic acidity due to allylic strain effect, see:. Evans D.A., Ennis M.D., and Le T. J. Am. Chem. Soc. 106 (1984) 1154
-
(1984)
J. Am. Chem. Soc.
, vol.106
, pp. 1154
-
-
Evans, D.A.1
Ennis, M.D.2
Le, T.3
-
40
-
-
67649609403
-
-
note
-
3N, Hunig's base, NMM, pyridine, DMAP and NaH, were tested for this reaction. It was found that the ratio of 38/40 varied between 1:5 and 8:1, with Hunig's base in toluene providing the highest amount of 38.
-
-
-
-
41
-
-
0021918985
-
-
Bock M.G., DiPardo R.M., Evans B.E., Rittle K.E., Boger J.S., Freidinger R.M., and Veber D.F. J. Chem. Soc., Chem. Commun. (1985) 109
-
(1985)
J. Chem. Soc., Chem. Commun.
, pp. 109
-
-
Bock, M.G.1
DiPardo, R.M.2
Evans, B.E.3
Rittle, K.E.4
Boger, J.S.5
Freidinger, R.M.6
Veber, D.F.7
-
42
-
-
3943048796
-
-
For olefin isomerization/migration as a side reaction to metathesis, see: and references cited therein
-
For olefin isomerization/migration as a side reaction to metathesis, see:. Schmidt B. Eur. J. Org. Chem. (2004) 1865 and references cited therein
-
(2004)
Eur. J. Org. Chem.
, pp. 1865
-
-
Schmidt, B.1
-
43
-
-
67649615711
-
-
note
-
Solvents screened include: dichloromethane, dichloroethane, chloroform, toluene, trifluorotoluene, ethyl acetate, isopropyl acetate, 2-methyl THF, THF, DME, methyl ethyl ketone.
-
-
-
-
46
-
-
67649602942
-
-
note
-
4Cl produced formaldehyde which added to the carbamate nitrogen. Small amounts of residual P reagents also had a more adverse effect in the subsequent hydrogenation.
-
-
-
-
47
-
-
67649576093
-
-
Cysteine has been demonstrated to be an effective scavenger for palladium
-
Cysteine has been demonstrated to be an effective scavenger for palladium:
-
-
-
-
49
-
-
67649582690
-
-
Fan, Y.; Saenz, J. E.; Shi, B.; Srirangam, J. K.; Yu, S. U.S. Patent Appl. Publ. US 2,006,091,067 A1, 2006.
-
Fan, Y.; Saenz, J. E.; Shi, B.; Srirangam, J. K.; Yu, S. U.S. Patent Appl. Publ. US 2,006,091,067 A1, 2006.
-
-
-
-
55
-
-
0001125915
-
-
Anderson N.G., Lust D.A., Colapret K.A., Simpson J.H., Malley M.F., and Gougoutas J.Z. J. Org. Chem. 61 (1996) 7955
-
(1996)
J. Org. Chem.
, vol.61
, pp. 7955
-
-
Anderson, N.G.1
Lust, D.A.2
Colapret, K.A.3
Simpson, J.H.4
Malley, M.F.5
Gougoutas, J.Z.6
-
57
-
-
0028080265
-
-
Nishitani K., Harada Y., Nakamura Y., Yokoo K., and Ymamakawa K. Tetrahedron Lett. 35 (1994) 7809
-
(1994)
Tetrahedron Lett.
, vol.35
, pp. 7809
-
-
Nishitani, K.1
Harada, Y.2
Nakamura, Y.3
Yokoo, K.4
Ymamakawa, K.5
-
63
-
-
67649579654
-
-
note
-
A solvent study indicated that the reaction occurred in various alcoholic solvents but not in aprotic solvents such as acetonitrile, THF, ethyl acetate or toluene.
-
-
-
-
64
-
-
67649621451
-
-
Epoxide ring opening by toluenesulfonamide is known to be catalyzed by pyridine, see
-
Epoxide ring opening by toluenesulfonamide is known to be catalyzed by pyridine, see:
-
-
-
-
68
-
-
84888587878
-
-
and references cited therein
-
Schwesinger R., Willaredt J., Schlemper H., Keller M., Schmitt D., and Fritz H. Chem. Ber. 127 (1994) 2435 and references cited therein
-
(1994)
Chem. Ber.
, vol.127
, pp. 2435
-
-
Schwesinger, R.1
Willaredt, J.2
Schlemper, H.3
Keller, M.4
Schmitt, D.5
Fritz, H.6
-
69
-
-
58149168529
-
-
For a detailed account of the effect of impurities as well as development of this RCM reaction on large scale, see:
-
For a detailed account of the effect of impurities as well as development of this RCM reaction on large scale, see:. Wang H., Goodman S.N., Dai Q., Stockdale G.W., and Clark W.M. Org. Process Res. Dev. 12 (2008) 226
-
(2008)
Org. Process Res. Dev.
, vol.12
, pp. 226
-
-
Wang, H.1
Goodman, S.N.2
Dai, Q.3
Stockdale, G.W.4
Clark, W.M.5
-
70
-
-
67649597782
-
-
note
-
A detailed account of development of this RCM reaction using alternative catalysts will be published separately.
-
-
-
-
72
-
-
0001355830
-
-
For DMAP-induced racemization during peptide coupling, see:
-
For DMAP-induced racemization during peptide coupling, see:. Gamet J.P., Jacquier R., and Verducci J. Tetrahedron 40 (1984) 1995
-
(1984)
Tetrahedron
, vol.40
, pp. 1995
-
-
Gamet, J.P.1
Jacquier, R.2
Verducci, J.3
-
76
-
-
67649624503
-
-
A detailed account of the oxidation of 55 to 1 will be published separately
-
A detailed account of the oxidation of 55 to 1 will be published separately.
-
-
-
-
77
-
-
33746923435
-
-
Oxidation of a secondary carbinol with the restrictions placed on process chemistry (non-toxic, low cost, solvent selection, etc.) is extremely challenging. For a general review of large-scale oxidation methods, see:
-
Oxidation of a secondary carbinol with the restrictions placed on process chemistry (non-toxic, low cost, solvent selection, etc.) is extremely challenging. For a general review of large-scale oxidation methods, see:. Caron S., Dugger R.W., Ruggeri S.G., Ragan J.A., and Ripin D.H.B. Chem. Rev. 106 (2006) 2943
-
(2006)
Chem. Rev.
, vol.106
, pp. 2943
-
-
Caron, S.1
Dugger, R.W.2
Ruggeri, S.G.3
Ragan, J.A.4
Ripin, D.H.B.5
-
80
-
-
33749007131
-
-
Yee N.K., Farina V., Houpis I.N., Haddad N., Frutos R.P., Gallou F., Wang X., Wei X., Simpson R.D., Feng X., Fuchs V., Xu Y., Tan J., Zhang L., Xu J., Smith-Keenan L.L., Vitous J., Ridges M.D., Spinelli E.M., and Johnson M. J. Org. Chem. 71 (2006) 7133
-
(2006)
J. Org. Chem.
, vol.71
, pp. 7133
-
-
Yee, N.K.1
Farina, V.2
Houpis, I.N.3
Haddad, N.4
Frutos, R.P.5
Gallou, F.6
Wang, X.7
Wei, X.8
Simpson, R.D.9
Feng, X.10
Fuchs, V.11
Xu, Y.12
Tan, J.13
Zhang, L.14
Xu, J.15
Smith-Keenan, L.L.16
Vitous, J.17
Ridges, M.D.18
Spinelli, E.M.19
Johnson, M.20
more..
-
82
-
-
67649621846
-
-
note
-
Safety concerns over the handling of aldehyde 13 restricts that the compound be handled as a solution, and that the temperature during distillation remain ≤50 °C.
-
-
-
|