| Abstrakt: |
1.Albonoursin is 3-benzylidene-6-isobutylidene-2,5-piperazinedione.2.A natural analog of albonoursin was isolated from the mycelia ofActinomyces albus var. fungatus andA. noursei, a number of its chemical properties were studied, and it was shown that it is 3,6-dibenzylidene-2,5-piperazinedione.3.The cleavage of 3,6-dibenzylidene-2,5-piperazinediones and albonoursin under the action of electron impact was studied, and a general scheme for the fragmentation of these compounds was established.4.The halogenation of albonoursin and its analog was studied, and it was shown that substitution in the methine groups occurs. |
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