On the Existence of a Mono-Vinyl d -Urobilin | Zendy

Miles R. Chedekel | Zendy; F. A. Bovey | Zendy; Andy Brewster | Zendy; Z. J. Petryka | Zendy; M. Weimer | Zendy; C. J. Watson | Zendy; Albert Moscowitz | Zendy; David A. Lightner | Zendy

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On the Existence of a Mono-Vinyl d -Urobilin

Author(s) -

Miles R. Chedekel,

F. A. Bovey,

Andy Brewster,

Z. J. Petryka,

M. Weimer,

C. J. Watson,

Albert Moscowitz,

David A. Lightner

Publication year - 1974

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.71.5.1599

Subject(s) - substituent , chemistry , incubation , stereochemistry , biochemistry

Chromic acid degradation of a d-urobilin, obtained after incubation of bilirubin in fecal bacterial cultures, gave methylvinylmaleimide and methylethylmaleimide. The d-urobilin, molecular weight 588, C(33)H(40)-N(4)O(6), clearly showed the presence of both vinyl and ethyl resonances in the nuclear magnetic resonance spectrum. These results point unambiguously to a urobilin structure with one vinyl and one ethyl beta-substituent.

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