Claims
- 1. A compound of the formula ##STR6## wherein each X is independently CH.sub.3 CHOH-- or CH.sub.2 .dbd.CH-- and wherein R is H or lower alkyl, in isolated form.
- 2. The compound of claim 1 which is of formula (2) wherein each X is vinyl.
- 3. The compound of claim 1 which is of formula (2) wherein one X is vinyl and the other X is CH.sub.3 CHOH--.
- 4. The compound of claim 1 wherein both X are CH.sub.3 CHOH--.
- 5. A pharmaceutical composition which consists essentially of the compound of claim 1 as active ingredient along with a pharmaceutically acceptable excipient.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a division of application Ser. No. 07/343,865 filed, Apr. 26, 1989, now U.S. Pat. No. 4,968,715, which is a continuation in part of U.S. Pat. application Ser. No. 215,592, filed Jul. 6, 1988 and now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4649151 |
Dougherty et al. |
Mar 1987 |
|
Non-Patent Literature Citations (4)
Entry |
Lispon et al., J. National Cancer Inst. (1961) 26(1):1-10. |
Dougherty et al., Adv. Exp. Med. Biol. (1983) 160:3-13. |
Kessel et al., Photochem. Photobiol. (1987) 46(5):563-568. |
Scourides et al., Cancer Res. (1987) 47:3439-3445. |
Divisions (1)
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Number |
Date |
Country |
Parent |
343865 |
Apr 1989 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
215592 |
Jul 1988 |
|