Two new chiral nucleoside analogues: (4R,5R)-4-(4,6-dimethyl­pyrimidin-2-ylsulfan­yl)-5-[(2S,5R)-2-isoprop­yl-5-methyl­cyclo­hexyl­oxy]-2,3,4,5-tetra­hydro­furan-2-one and (4R,5R)-5-[(2S,5R)-isoprop­yl-5-methyl­cyclo­hexyl­oxy]-4-(4-methyl-1,3-thia­zol-2-ylamino)-2,3,4,5-tetra­hydro­furan-2-one

He, L.; Liu, Y.-M.; Zhang, W.; Chen, Q.-H.

doi:10.1107/S0108270105007833

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 3
A packing view for (II)

, showing the hydrogen bonding. Atoms labelled with the suffixes A–D are at the symmetry positions ( $[-x, y-{1\over 2}, {1\over 2}-z]$ ), ( $[{1\over 2}+x]$ , $[{1\over 2}-y, -z]$ ), ( $[{-x, {1\over 2}+y, {1\over 2}-z]$ ) and ( $[x-{1\over 2}]$ , $[{1\over 2}-y]$ , -z), respectively.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 61| Part 6| May 2005| Pages o390-o392

doi:10.1107/S0108270105007833

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