Claims
- 1. A compound having the formula: ##STR44## wherein R.sub.2 is a hydrogen atom or an amino-protecting group selected from the group consisting of tri-lower alkylsilyl, acyl and aralkyl, and each of R.sub.3 and R.sub.4 is a hydrogen atom or a hydroxyl-protecting group selected from the group consisting of tri-lower alkylsilyl, acyl, aralkyl, methoxymethyl, allyl and pyranyl, or a reactive derivative thereof selected from the group consisting of a salt, acid halide, ester, anhydride, amide and azide.
Priority Claims (2)
Number |
Date |
Country |
Kind |
61-152706 |
Jul 1986 |
JPX |
|
61-191590 |
Aug 1986 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 063,077, filed June 17, 1987, now U.S. Pat. No. 4,822,786.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4278793 |
Durckheimer |
Jul 1981 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO8605786 |
Oct 1986 |
WOX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
63077 |
Jun 1987 |
|