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0343640256
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This reaction was carried out essentially as described in the literature; see: (a) Mizrakh, L. I.; Polonskaya, L. Yu.; Kozlova, L. N.; Babushkina, T. A.; Bryantsev, B. I. Zh. Obshch. Khim. 1975, 45, 1469-1473. (b) Pudovik, M. A.; Terent'eva, S. A.; Medvedeva, M. D.; Pudovik, A. N. Zh. Obshch. Khim. 1973, 43, 679.
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0342335093
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This reaction was carried out essentially as described in the literature; see: (a) Mizrakh, L. I.; Polonskaya, L. Yu.; Kozlova, L. N.; Babushkina, T. A.; Bryantsev, B. I. Zh. Obshch. Khim. 1975, 45, 1469-1473. (b) Pudovik, M. A.; Terent'eva, S. A.; Medvedeva, M. D.; Pudovik, A. N. Zh. Obshch. Khim. 1973, 43, 679.
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0003515606
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Heyden: London
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13C NMR signals associated with tertiary amide rotamers is well-documented in the literature; for example, see: (a) Abraham, R. J.; Loftus, P. In Proton and Carbon-13 NMR Spectroscopy -An Integrated Approach; Heyden: London, 1980; pp 171-174. (b) Edwards, O. E.; Dvornik, D.; Kolt, R. J.; Blackwell, B. A. Can. J. Chem. 1992, 70, 1397-1405. (c) Hoye, T. R.; Renner, M. K. J. Org. Chem. 1996, 61, 2056- 2064. (d) Wilk, A.; Grajkowski, A.; Phillips, L. R.; Beaucage, S. L. J. Org. Chem. 1999, 64, 7515-7522.
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0342335092
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13C NMR signals associated with tertiary amide rotamers is well-documented in the literature; for example, see: (a) Abraham, R. J.; Loftus, P. In Proton and Carbon-13 NMR Spectroscopy - An Integrated Approach; Heyden: London, 1980; pp 171-174. (b) Edwards, O. E.; Dvornik, D.; Kolt, R. J.; Blackwell, B. A. Can. J. Chem. 1992, 70, 1397-1405. (c) Hoye, T. R.; Renner, M. K. J. Org. Chem. 1996, 61, 2056- 2064. (d) Wilk, A.; Grajkowski, A.; Phillips, L. R.; Beaucage, S. L. J. Org. Chem. 1999, 64, 7515-7522.
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0001692739
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13C NMR signals associated with tertiary amide rotamers is well-documented in the literature; for example, see: (a) Abraham, R. J.; Loftus, P. In Proton and Carbon-13 NMR Spectroscopy - An Integrated Approach; Heyden: London, 1980; pp 171-174. (b) Edwards, O. E.; Dvornik, D.; Kolt, R. J.; Blackwell, B. A. Can. J. Chem. 1992, 70, 1397-1405. (c) Hoye, T. R.; Renner, M. K. J. Org. Chem. 1996, 61, 2056-2064. (d) Wilk, A.; Grajkowski, A.; Phillips, L. R.; Beaucage, S. L. J. Org. Chem. 1999, 64, 7515-7522.
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13C NMR signals associated with tertiary amide rotamers is well-documented in the literature; for example, see: (a) Abraham, R. J.; Loftus, P. In Proton and Carbon-13 NMR Spectroscopy - An Integrated Approach; Heyden: London, 1980; pp 171-174. (b) Edwards, O. E.; Dvornik, D.; Kolt, R. J.; Blackwell, B. A. Can. J. Chem. 1992, 70, 1397-1405. (c) Hoye, T. R.; Renner, M. K. J. Org. Chem. 1996, 61, 2056- 2064. (d) Wilk, A.; Grajkowski, A.; Phillips, L. R.; Beaucage, S. L. J. Org. Chem. 1999, 64, 7515-7522.
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0343640252
-
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note
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6.
-
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-
24
-
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0342770008
-
-
note
-
31P NMR spectrum (data shown in Experimental section and as Supporting Information).
-
-
-
-
25
-
-
0343204677
-
-
Data shown as Supporting Information
-
Data shown as Supporting Information.
-
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26
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67949087724
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Hund, R.-D.; Behrens, U.; Röschenthaler, G.-V. Phosphorus, Sulfur, Silicon 1992, 69, 119-127.
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-
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0343640248
-
-
note
-
p-1, out of potentially four diastereomers, can be isolated.
-
-
-
-
38
-
-
0342335084
-
-
note
-
3CN 2:1 v/v) = 0.71.
-
-
-
-
39
-
-
0342335083
-
-
Georg Thieme Verlag Stuttgart: New York
-
Numbering nomenclature of the oxygen, phosphorus, and nitrogen atoms of the oxazaphospholane ring is 1, 2, and 3, respectively. See: Phosphor-Verbindungen II, Houben-Weyl - Methoden der organischen Chemie, Band E2; Georg Thieme Verlag Stuttgart: New York, 1982; pp 1125-1126.
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40
-
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0342770000
-
-
note
-
Complete elution of deoxyribonucleoside cyclic N-acylphosphoramidites from silica gel columns should be accomplished within 2 h to minimize decomposition.
-
-
-
-
41
-
-
0343640247
-
-
note
-
p-9.
-
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-
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42
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0025563836
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(a) Beaucage, S. L.; Iyer, R. P.; Egan, W.; Regan, J. B. Ann. New York Acad. Sci. 1990, 616, 483-485.
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(b) Iyer, R. P.; Phillips, L. R.; Egan, W.; Regan, J. B.; Beaucage, S. L. J. Org. Chem. 1990, 55, 4693-4699.
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45
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0343204675
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note
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31P NMR spectroscopy.
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46
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0342335081
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Mizrakh, L. I.; Polonskaya, L. Yu.; Babushkina, T. A.; Bryantsev, B. I. Zh. Obshch. Khim. 1975, 45, 549-552.
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Bryantsev, B.I.4
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47
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0343204673
-
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note
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2O (1:1 v/v) for further experimentation.
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49
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0030809006
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0001172473
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(b) Wilk, A.; Grajkowski, A.; Srinivasachar, K.; Beaucage, S. L. Antisense Nucleic Acid Drug Dev. 1999, 9, 361-366.
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0343204670
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note
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p-9.
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60
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0042729737
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This CPG support was prepared as reported in the literature; see: Brown, T.; Pritchard, C. E.; Turner, G.; Salisbury, S. A. J. Chem. Soc., Chem. Commun. 1989, 891-893.
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