Tetrahedron Letters p. 227 - 230 (1988)
Update date:2022-08-04
Topics:
Taguchi, Takeo
Namba, Ryoichi
Nakazawa, Masakazu
Nakajima, Masaharu
Nakama, Yumiko
et al.
Preparations of the titled fluorinated vitamin D2 analogs (3, 4, and 5,) were efficiently achieved through reactions of the C22-aldehyde (6) with phenylsulphone derivatives (7,8 and 9).
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