Systems containing Nitrogen and Sulphur, Selenium, or Tellurium

PART II Systems containing Nitrogen and Sulphur, Selenium, or Tellurium 

A review describes the pharmacological properties of l,2-benzisothiazoles. In connection with thiazoles, we find several reviews or papers thiazoles in food aromas patellamides, which are antineoplastic cyclic peptides, from the marine tunicate Lissoclinum patella, which contain an unusual fused oxazoline-thiazole unit and polythiazole-containing peptide antibiotics. An interesting total synthesis of the aglycon of bleomycin A2 should also be mentioned.  

Other ring systems reviewed include 3-acyl-l,3-thiazolidine-2-thione (monitored aminolysis), benzothiazoles in the aquatic environment/ and 

Selenium and tellurium compounds that include nitrogen are also described in proceedings published in 1981 / 

The presentation of material in this section follows the arrangement adopted in the previous volume of these Reports. 

Parts 2 and 3 of the comprehensive review of the chemistry of thiazole have appearedthese include chapters on meso-ionic thiazoles and on cyanine dyes derived from thiazolium salts, and also one on selenazole and its derivatives. The chemistry of selenazole is also included in a review of selenium-nitrogen heterocycles. An account of the chemistry of thiazolidin-4-ones (which includes 2,4-diones but not rhodanine and isorhodanine) updates an earlier review. Reviews on cyclic sulphur-nitrogen compounds and on the synthesis and transformations of nitrogen- and sulphur-containing bicyclic heterocycles have appeared. More general reviews, which contain chemistry relevant to this section, cover reactions based on the onium salts of aza-aromatics, the synthesis of 

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Part II Systems containing Nitrogen and Sulphur, Selenium, or Tellurium By K. Turnbull 1 Introduction and Reviews 151... 

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