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| ● paper help | ● paper help, thanks | | ● Paper help, thanks! | ● paper help tetrahedron letters, 1993, 34, 3737 | | ● paper help | ● paper help TL 1992, 33, 2279-2282 | | ● Paper Help, TL 1989, thanks | ● paper help, thanks! | | ● Paper Help, TL 1977, Thanks | ● 求文献， Tetrahedron 1983 | | ● paper help, TL 1984, thanks | ● 急需Tetrahedron 文献一篇,谢谢各位大侠旁忙 | | ● 再求tetrahedron letters | ● 急求化学文献 | | ● literature help! link provided! thanks | ● 求文献（两个包子） |
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| ● 求文献（两个包子） | ● Paper Help, TL 1977, Thanks | | ● 求文献，谢谢！ | ● paper help, TL 1984, thanks | | ● help for paper from Tetrahedron Letters (paper in press)-_T | ● 再求tetrahedron letters | | ● Paper Help!!! | ● literature help! link provided! thanks | | ● paper help | ● paper help, thanks | | ● Paper help, thanks! | ● paper help tetrahedron letters, 1993, 34, 3737 | | ● paper help | ● paper help TL 1992, 33, 2279-2282 | | ● Paper Help, TL 1989, thanks | ● paper help, thanks! |
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