Chemical and Pharmaceutical Bulletin p. 144 - 146 (1995)
Update date:2022-08-16
Topics:
Li
Sun
Ogura
Konda
Sasaki
Toda
Takayanagi
Harigaya
The photochemical reactions of 3',5'-dibenzoyl-2'-deoxyuridine and -thymidine with 2,3-dimethyl-2-butene by upon ultraviolet (UV) irradiation in acetone have been investigated. Each reactant gave a pair of diastereomers in good yield. After recrystallization, mixed crystals of diastereomers could be isolated and purified. An X-ray analysis of a mixed crystal of the thymidine derivative (3b) showed a pair of diastereomers (A and B) composing a unit cell.
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