Claims
- 1. A compound of the formula ##STR24## wherein Y is chloro or bromo; Pr is a protecting group selected from benzoyl, acetyl, triphenylsilyl or t-butyldiphenylsilyl;
- R.sup.5 is C.sub.1-5 alkyl or benzyl; and
- R.sup.7 is C.sub.1-5 alkyl, benzyl, C.sub.2-5 alkoxyalkyl or C.sub.3-5 alkoxyalkoxyalkyl.
- 2. A compound of claim 1 which is ethyl 6-bromo-5(S)-tert-butyldiphenylsilyloxy-3(R)-(methoxymethoxy)hexanoate.
Parent Case Info
This is a division of application Ser. No. 875,846 filed June 18, 1986 now abandoned which is a division of application Ser. No. 673,231 filed Nov. 19, 1984 now U.S. Pat. No. 4,611,068.
Divisions (2)
|
Number |
Date |
Country |
Parent |
875846 |
Jun 1986 |
|
Parent |
673231 |
Nov 1984 |
|