Lyophyllum connatum

Lyophyllin was isolated from Lyophyllum connatum (Tricholoma-taceae) by Fugmann and Steglich (368) along with two other carbamide derivatives AT -hydroxy-N,JV-dimethylurea and an amino acid, connatin. 

Lyophyllum connatum FeClj colorless- purple blue Connatin... 

CgH,7N304, Mr 219.24, cryst., mp. 184-188 °C (decomp.), [a] 3 +25.5° (HjO), soluble in water and methanol. C. occurs together with lyophyllin and AT-hydroxy-A,Al-dimethylurea in Lyophyllum connatum (Agaricales). The biosynthesis starts from citrulline by methylation and subsequent A-hydroxylation. C. is the biosynthetic precursor of N -hydroxy-N,N-dimethylurea (C3H8N2O2, Mr 104.11, mp. 107-109°C) which, together with C., is responsible for the blue color reaction of the fruit bodies of L. connatum with iron(lll) chloride. 

N -Hydroxy-N,N-dimethyl-L-citrullin connatin Lyophyllum connatum (24) ... 

Fugmann, B., and W. Steglich Unusual Components of the Toadstool Lyophyllum connatum (Agaricales). Angew. Chem., Int. Ed. Engl. 23, 72 (1984). 

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