Novel vitamin D.sub.3 derivatives

Details Novel vitamin D.sub.3 derivatives Novel vitamin D.sub.3 derivatives

1988-06-22

1990-01-30

Lipovsky, Joseph A.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

9,10-seco- cyclopentanohydrophenanthrene ring system doai

2603972, A61K 3159, C07J 900

Patent

active

048973874

ABSTRACT:
Novel vitamin D.sub.3 derivatives of the following formula ##STR1## wherein R represents a hydrogen atom or a lower alkyl group. These compounds have an activity of inducing differentiation of tumor cells, and are useful for antitumor agents. On the other hand, the compounds have almost no vitamin D activity.

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