Claims
- 1. A compound of the formula ##STR25## wherein R is trityl, benzyl, benzhydryl or lower alkenyl; one of R.sub.1 and R.sub.2 is hydrogen, and the other is ##STR26## with the proviso that when R.sub.1 is hydrogen, the 2-3 double bond has a trans configuration and that when R.sub.1 is other than hydrogen the 2-3 double bond has a cis configuration.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a divisional application of U.S. Pat. application Ser. No. 638,382, Chan et al., filed Dec. 8, 1975, now U.S. Pat. No. 4,029,678, which in turn is a continuation-in-part of U.S. Pat. application Ser. No. 544,153, Chan et al., filed Jan. 27, 1975, now U.S. Pat. No. 4,000,169.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4003919 |
Scott et al. |
Jan 1977 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
638382 |
Dec 1975 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
544153 |
Jan 1975 |
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