Claims
- 1. A compound of the formula: ##STR386## wherein R1 represents 1-hydroxyethyl or a protected 1-hydroxyethyl; R2and R3 each independently represent a hydrogen atom or a protecting group; X represents an alkyl (C1-C3) substituted or unsubstituted methylene group; Y represents (1) an unsubstituted or alkyl (C1-C3) substituted guanidyl group, (2) an unsubstituted or substituted hydrazino group wherein the substituent is an alkyl (C1-C3) group, (3) a group represented by the formula (4-a): --NHOR8-a (4-a) wherein R8-a represents a hydrogen atom or an alkyl (C1-C3) group or (4) a group represented by the formula (2-a): ##STR387## wherein (A) R5 is (a) an alkyl (C1-C4) group which is substituted with a mono- or di-alkyl-(C1-C3)-substituted aminocarbonyl group or carboxyl group or (b) a pyridyl group and R6 is a hydrogen atom or an alkyl (C1-C4) group, or (B) R5 and R6 jointly represent an alkylene chain to form, together with the adjacent nitrogen atom, (a) a substituted 3- to 7-membered cyclic amino group wherein the substituent is an alkyl (C1-C3) group, carbamoyl group, a carboxyl group, a mono- or di-alkyl-(C1-C3) substituted aminocarbonyl group or a hydroxyl group, (b) an unsubstituted 3- to 7-membered cyclic amino group which may contain double bond(s) in the ring thereof, or (c) ##STR388##
Priority Claims (6)
Number |
Date |
Country |
Kind |
58-081443 |
May 1983 |
JPX |
|
58-108472 |
Jun 1983 |
JPX |
|
58-127485 |
Jul 1983 |
JPX |
|
58-166938 |
Sep 1983 |
JPX |
|
58-212857 |
Nov 1983 |
JPX |
|
59-023497 |
Feb 1984 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/106,036 filed Oct. 8, 1987, now U.S. Pat. No. 4,943,569 in turn a continuation application of Ser. No. 06/608,618 filed May 9, 1984, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4888344 |
Sunagawa et al. |
Dec 1989 |
|
4943569 |
Sunagawa |
Jul 1990 |
|
4962103 |
Sunagawa et al. |
Oct 1990 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
59-16892 |
Jul 1982 |
JPX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
106036 |
Oct 1987 |
|
Parent |
608618 |
May 1984 |
|