Claims
- 1. A compound of the formula ##STR23## wherein R.sub.3 taken together with its attached oxygen atom forms an ether hydroxy protecting group; the dotted bond forms a double bond or is hydrogenated to form a single bond; and R.sub.6 is lower alkyl or aryl.
- 2. The compound of claim 1, wherein the methyl groups indicated by the wavey lives have the alpha orientation.
- 3. A compound of the formula ##STR24## wherein R.sub.15 is a leaving group; R.sub.3 taken together with its attached oxygen atom forms an ether hydroxy protecting group; and the dotted bond forms a double bond or is hydrogenated to form a single bond.
- 4. The compound of claim 3, wherein said leaving group is tosyloxy, mesyloxy or halogen.
- 5. The compound of claim 4, wherein the methyl substituents designated by the wavey lines all have the alpha configuration.
Parent Case Info
This is a division, of application Ser. No. 07/030,798 filed Mar. 27, 1987, now U.S. Pat. No. 4,789,750.
Non-Patent Literature Citations (1)
Entry |
Chan et al., J. Org. Chem., vol. 43, p. 3475 (1978). |
Divisions (1)
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Number |
Date |
Country |
Parent |
030798 |
Mar 1987 |
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