Claims
- 1. A compound of the formula ##STR14## wherein R.sup.1c is amino or protected amino, or a base addition or acid addition salt or ester thereof.
- 2. A compound as claimed in claim 1, wherein R.sup.1c is amino group.
- 3. A compound as claimed in claim 1, wherein R.sup.1c is a protected amino group.
- 4. A compound as claimed in claim 3, wherein the protecting group of the protected amino group is an aromatic acyl, aliphatic acyl, esterified carboxyl, trityl or trialcyloilyl amino-protecting group.
- 5. A compound as claimed in claim 3, wherein the protecting group of the protected amino group is an esterified carboxyl group.
- 6. A compound as claimed in claim 5, wherein the esterified carboxyl group is benzyloxycarbonyl.
- 7. A compound as claimed in claim 1, wherein the group represented by the symbol R.sup.1c has .beta.-configuration to the azetidine ring.
- 8. A compound as claimed in claim 1, which is sodium cis-3-benzyloxycarboxamido-4-carbamoyloxymethyl-2-azetidinone-1-sulfonate.
- 9. A compound as claimed in claim 1, which is sodium (3S,4S)-cis-3-benzyloxycarboxamido-4-carbamoyloxymethyl-2-azetidinone-1-sulfonate.
- 10. A compound as claimed in claim 1, which is cis-3-amino-4-carbamoyloxymethyl-2-azetidinone-1-sulfonic acid.
- 11. A compound as claimed in claim 1, which is (3S,4S)-cis-3-amino-4-carbamoyloxymethyl-2-azetidinone-1-sulfonic acid.
Priority Claims (6)
Number |
Date |
Country |
Kind |
PCT/JP80/00297 |
Dec 1980 |
WOX |
|
PCT/JP81/00103 |
Apr 1981 |
WOX |
|
PCT/JP81/00183 |
Aug 1981 |
WOX |
|
PCT/JP81/00252 |
Sep 1981 |
WOX |
|
57-73728 |
Apr 1982 |
JPX |
|
57-93463 |
May 1982 |
JPX |
|
Parent Case Info
This application is a division of application Ser. No. 499,801, filed May 31, 1983, (now U.S. Pat. No. 4,572,801) which application is a continuation-in-part of application Ser. No. 405,592, filed Aug. 5, 1982, which application is a continuation-in-part of application Ser. No. 326,938, filed Dec. 3, 1981.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4200572 |
Gleason et al. |
Apr 1980 |
|
4225586 |
Imada et al. |
Sep 1980 |
|
4229436 |
Imada et al. |
Oct 1980 |
|
Foreign Referenced Citations (4)
Number |
Date |
Country |
887428 |
Mar 1981 |
BEX |
3239157A1 |
Oct 1984 |
DEX |
2071650 |
Mar 1978 |
GBX |
2091724 |
Jul 1979 |
GBX |
Non-Patent Literature Citations (6)
Entry |
Imada et al., Nature, vol. 289, pp. 590-591 (1981). |
Sykes et al., Nature, vol. 291, pp. 489-491 (1981). |
12th International Congress of Chemotherapy, Florence, Italy, Jul. 19-24, 1981, pp. 55-56. |
Sykes et al., Journal of Antimicrobial Chemotherapy, (1981) 8 Suppl. E 1-16. |
Sykes et al., Chemical Abstracts, 95, 217370S (1981). |
Matsuo et al., Chemical Abstracts, 95, 97566M (1981). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
499801 |
May 1983 |
|
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
405592 |
Aug 1982 |
|
Parent |
326938 |
Dec 1981 |
|