Claims
- 1. A compound of the formula ##SPC11##
- wherein R.sub.1, taken alone, denotes an acyl group of the formula
- R.sub.a --CH.sub.2 --CO
- where R.sub.a is ##SPC12##
- Q is hydrogen, chloro, bromo, C.sub.1 to C.sub.3 -alkyl, C.sub.1 to C.sub.3 -alkyloxy, nitro, or cyano; B is oxygen or a chemical bond; and m is an integer of from 0 to 2;
- R.sub.2, taken alone, is defined as R.sub.1 above, or is ##SPC13##
- where each of R.sub.4 and R.sub.5 is hydrogen or a halogen (fluorine, chlorine, bromine, or iodine); or R.sub.1 and R.sub.2 taken together with the nitrogen to which they are bonded complete a cyclic imide radical derived from a hydrocarbon dibasic acid having from 3 to 20 carbon atoms, and R.sub.3 is hydrogen, C.sub.1 to C.sub.4 alkyl, p-nitrobenzyl, p-methoxybenzyl, benzyl, benzyhydryl, phthalimidomethyl, succinimidomethyl, 2,2,2-trichloroethyl, trimethylsilyl, phenacyl, or p-halophenacyl in which halo denotes chlorine or bromine, X is chlorine or bromine and Z is hydrogen or --SCN.
- 2. A compound as defined in claim 1 wherein R.sub.1 and R.sub.2 are taken together with the nitrogen to which they are bonded to complete the succinimido or phthalimido group, R.sub.3 is a C.sub.1 to C.sub.4 -alkyl, p-nitrobenzyl, p-methoxybenzyl, benzyl, benzhydryl phthalimidomethyl, succinimidomethyl, 2,2,2-trichloroethyl, trimethylsilyl, phenacyl, or p-halophenacyl where halo denotes chlorine or bromine; X is chlorine, and Z is --SCN.
- 3. A compound as defined in claim 2 wherein the compound is methyl 2-chloro-.alpha.-(1'-cyanodithio-1'-methylethyl)-4-oxo-3-phthalimido-2-azetidineacetate.
- 4. A compound as defined in claim 1 wherein R.sub.1 and R.sub.2 are taken together with the nitrogen to which they are bonded to complete the succinimido or phthalimido group; R.sub.3 is a C.sub.1 to C.sub.4 -alkyl, p-nitrobenzyl, p-methoxybenzyl, benzyl, benzhydryl, phthalimidomethyl, succinimidomethyl, 2,2,2-trichloroethyl, trimethylsilyl, phenacyl, or p-halophenacyl where halo denotes chlorine or bromine; X is chlorine, and Z is hydrogen.
- 5. A compound as defined in claim 4 wherein the compound is methyl 2-chloro-.alpha.-(1'-mercapto-1'-methylethyl)-4-oxo-3-phthalimido-3-azetidineacetate.
CROSS REFERENCE
This is a division, of application Ser. No. 165,758, filed July 15, 1971, now U.S. Pat. No. 3,897,445, which is a continuation-in-part of my application Ser. No. 148,129, filed May 28, 1971, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3840556 |
Kukolja |
Oct 1974 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
165758 |
Jul 1971 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
148129 |
May 1971 |
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