Claims
- 1. An intermediate compound selected from the group consisting of:(R) Ethyl 4-(N-benzyloxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate; (S) Ethyl 4-(N-benzyloxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate; (R) Ethyl 4-(N-fluoroenylmethoxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate; (S) Ethyl 4-(N-fluoroenylmethoxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate; (R) Ethyl 4-(N-tert-butoxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate; and (S) Ethyl 4-(N-tert-butoxycarbonyl)amino-3-methanesulfonyloxy-2-(spirocyclopropyl)-butyrate.
Parent Case Info
This is a divisional of U.S. patent application Ser. No. 09/426,237, filed Oct. 25, 1999 which claims the benefit of U.S. Provisional Application Ser. No. 06/105,650 filed Oct. 26, 1998.
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Non-Patent Literature Citations (1)
Entry |
Kimura et al., “Synthesis and Structure-Activity Relationships of 7-[3-(-Aminoalkyl)pyrrolidinyl]-and 7-[3-1-aminocycloakyl)pyrrolidinyl]-quinolone Antibacterials”, Chem. Pharm. Bull. 42 (7), pp. 1442-54, 1994. |
Provisional Applications (1)
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Number |
Date |
Country |
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60/105650 |
Oct 1998 |
US |