共查询到20条相似文献,搜索用时 31 毫秒
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Marjorie V. N. Sudds 《BMJ (Clinical research ed.)》1936,2(3961):1169-1170
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Anne F. Cichy Purushotham Vemishetti Elie Abushanab 《Nucleosides, nucleotides & nucleic acids》2013,32(5-6):957-960
Abstract In the course of our work to prepare l1, Z2-seco-nucleotides, an unusual dephosphorylation reaction took place. When compound 1 was subjected to transfer hydrogenation conditions, the expected product was not obtained. Instead, a crystalline solid that proved not to have phosphorus was isolated in 78% yield. 1H and 13C nmr analyses confirmed the hydrogenolysis of the benzyl groups as well as the loss of the phenyl esters. with elemental analytical data suggested that the structure of the compound could be either the 2′,5′-anhydro (2, R[dbnd]H) or 3′,5′-an- hydro derivative 3. precluded the use of spectroscopic analyses to prove the struc-ture. However, based on our experience with related compounds, structure 2 was favored, and we set out to prove it by another synthetic route. 相似文献
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James B. Fleming 《BMJ (Clinical research ed.)》1943,2(4325):677-678
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M. Hatangdi 《BMJ (Clinical research ed.)》1944,2(4374):598-599
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