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1
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0023090935
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Ross P., Weinhouse H., Aloni Y., Michaeli D., Weinberger-Ohana P., Mayer R., Braun S., de Vroom E., van der Marel G.A., van Boom J.H., Benziman M. Nature (London). 325:1987;279-281.
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Nature (London)
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Ross, P.1
Weinhouse, H.2
Aloni, Y.3
Michaeli, D.4
Weinberger-Ohana, P.5
Mayer, R.6
Braun, S.7
De Vroom, E.8
Van der Marel, G.A.9
Van Boom, J.H.10
Benziman, M.11
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2
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0025116425
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Ross P., Mayer R., Weinhouse H., Amikam D., Huggirat Y., Benziman M., de Vroom E., Fidder A., de Paus P., Sliedregt L.A.J.M., van der Marel G.A., van Boom J.H. J. Biol. Chem. 265:1990;18933-18943.
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J. Biol. Chem.
, vol.265
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Ross, P.1
Mayer, R.2
Weinhouse, H.3
Amikam, D.4
Huggirat, Y.5
Benziman, M.6
De Vroom, E.7
Fidder, A.8
De Paus, P.9
Sliedregt, L.A.J.M.10
Van der Marel, G.A.11
Van Boom, J.H.12
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4
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85031132710
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In Refs. 1,2, there is no information about the yield of the desired compound in the deprotection of the N-diphenylacetyl protectors. Thus, we cannot know whether the deprotection causes decomposition of the desired product in the existing synthesis. However, according to experiments carried out by us, cGpGp was decomposed to no small extent by treatment with hot conc. aqueous ammonia to give undesired products. The structure of the products was not determined because analytical samples of them were not obtained though chromatographic purification was attempted under several conditions; we supposed that the products are those resulting from cleavage of internucleotide linkage
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In Refs. 1,2, there is no information about the yield of the desired compound in the deprotection of the N-diphenylacetyl protectors. Thus, we cannot know whether the deprotection causes decomposition of the desired product in the existing synthesis. However, according to experiments carried out by us, cGpGp was decomposed to no small extent by treatment with hot conc. aqueous ammonia to give undesired products. The structure of the products was not determined because analytical samples of them were not obtained though chromatographic purification was attempted under several conditions; we supposed that the products are those resulting from cleavage of internucleotide linkage.
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5
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85031130545
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This paper eliminates another defect of the existing synthesis. In the field of chemical synthesis, detailed experimental protocol is very important for reexamination of the synthesis. However, Refs. 1,2 do not describe in detail the protocol; this is troublesome for further investigations. By contrast, this paper provides detailed experimental procedures for all reactions
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This paper eliminates another defect of the existing synthesis. In the field of chemical synthesis, detailed experimental protocol is very important for reexamination of the synthesis. However, Refs. 1,2 do not describe in detail the protocol; this is troublesome for further investigations. By contrast, this paper provides detailed experimental procedures for all reactions.
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6
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0034815285
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Hayakawa Y., Kawai R., Hirata A., Sugimoto J., Kataoka M., Sakakura A., Hirose M., Noyori R. J. Am. Chem. Soc. 123:2001;8165-8176.
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(2001)
J. Am. Chem. Soc.
, vol.123
, pp. 8165-8176
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Hayakawa, Y.1
Kawai, R.2
Hirata, A.3
Sugimoto, J.4
Kataoka, M.5
Sakakura, A.6
Hirose, M.7
Noyori, R.8
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8
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0035886957
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Hayakawa Y., Hirata A., Sugimoto J., Kawai R., Sakakura A., Kataoka M. Tetrahedron. 57:2001;8823-8826.
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(2001)
Tetrahedron
, vol.57
, pp. 8823-8826
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Hayakawa, Y.1
Hirata, A.2
Sugimoto, J.3
Kawai, R.4
Sakakura, A.5
Kataoka, M.6
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9
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0035932575
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Kataoka M., Hattori A., Okino S., Hyodo M., Asano M., Kawai R., Hayakawa Y. Org. Lett. 3:2001;815-818.
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(2001)
Org. Lett.
, vol.3
, pp. 815-818
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Kataoka, M.1
Hattori, A.2
Okino, S.3
Hyodo, M.4
Asano, M.5
Kawai, R.6
Hayakawa, Y.7
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11
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85031143515
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note
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4a and 4b carried out in a similar manner also provided 5 as a sole product. This result also supported the assigned structure of 4a and 4b Deprotection of the single material of 4a and 4b carried out in a similar manner also provided 5 as a sole product. This result also supported the assigned structure of 4a and 4b.
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12
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33845373700
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(a) Hayakawa Y., Kato H., Uchiyama M., Kajino H., Noyori R. J. Org. Chem. 51:1986;2400-2402.
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(1986)
J. Org. Chem.
, vol.51
, pp. 2400-2402
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Hayakawa, Y.1
Kato, H.2
Uchiyama, M.3
Kajino, H.4
Noyori, R.5
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15
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0026663104
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(a) Gasparutto D., Livache T., Bazin H., Duplaa A.-M., Guy A., Khorlin A., Molko D., Roget A., Téoule R. Nucleic Acids Res. 20:1992;5159-5166.
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(1992)
Nucleic Acids Res.
, vol.20
, pp. 5159-5166
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Gasparutto, D.1
Livache, T.2
Bazin, H.3
Duplaa, A.-M.4
Guy, A.5
Khorlin, A.6
Molko, D.7
Roget, A.8
Téoule, R.9
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18
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85031130718
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1H NMR spectrum listed in Ref. 1 was taken at 50°C. Therefore, this work also took the spectrum under the same conditions in order to carry out exact comparison of both spectra
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1H NMR spectrum listed in Ref. 1 was taken at 50°C. Therefore, this work also took the spectrum under the same conditions in order to carry out exact comparison of both spectra.
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19
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0028246706
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Representative works: (a) Hayakawa Y., Hirose M., Noyori R. Nucleosides Nucleotides. 13:1994;1337-1345 (b) Iyer R.P., Guo M.-J., Yu D., Agrawal S. Tetrahedron Lett. 39:1998;2491-2494 (c) Boesen T., Kehler J., Dahl O. Nucleosides Nucleotides. 18:1999;1241-1242.
-
(1994)
Nucleosides Nucleotides
, vol.13
, pp. 1337-1345
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Hayakawa, Y.1
Hirose, M.2
Noyori, R.3
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20
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0032559980
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Representative works: (a) Hayakawa Y., Hirose M., Noyori R. Nucleosides Nucleotides. 13:1994;1337-1345 (b) Iyer R.P., Guo M.-J., Yu D., Agrawal S. Tetrahedron Lett. 39:1998;2491-2494 (c) Boesen T., Kehler J., Dahl O. Nucleosides Nucleotides. 18:1999;1241-1242.
-
(1998)
Tetrahedron Lett.
, vol.39
, pp. 2491-2494
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Iyer, R.P.1
Guo, M.-J.2
Yu, D.3
Agrawal, S.4
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21
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0032811604
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Representative works: (a)
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Representative works: (a) Hayakawa Y., Hirose M., Noyori R. Nucleosides Nucleotides. 13:1994;1337-1345 (b) Iyer R.P., Guo M.-J., Yu D., Agrawal S. Tetrahedron Lett. 39:1998;2491-2494 (c) Boesen T., Kehler J., Dahl O. Nucleosides Nucleotides. 18:1999;1241-1242.
-
(1999)
Nucleosides Nucleotides
, vol.18
, pp. 1241-1242
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Boesen, T.1
Kehler, J.2
Dahl, O.3
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26
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0002934419
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This compound is commercially available from Aldrich
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Ukai T., Kawazura H., Ishii Y., Bonnet J.J., Ibers J.A. J. Organomet. Chem. 65:1974;253-266. This compound is commercially available from Aldrich.
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(1974)
J. Organomet. Chem.
, vol.65
, pp. 253-266
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Ukai, T.1
Kawazura, H.2
Ishii, Y.3
Bonnet, J.J.4
Ibers, J.A.5
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