Cycloids containing nitrogen. 842 



40, 



40, 



CYCLOIDS Cc,Ht02N2 



"'-Ethyluracil. 

 Tafel 11. Thompson, H. B. B., 

 (4489). 



4-Ethyluracil 



and its 5-bromu derivative. 

 Wheeler & Bristol. Am., 33, (437 



CYCLOID CeHioOzNi 



n-Etliylhydrouracil. 

 Tafel n. Thompson, H. B. B., 

 (4489). 



CYCLOID CtHsO N, 



2, 3-Dimethylpyrazine 



o-carboxylic acid 



^C(C03H).CH^j^^ 



^<CMe=CMe>'^ 



Gabriel u. Sonn, A. B., 40, (4850) 



CYCLOIDS C7H,o02N2 



a-Etliylmethyluracil 



Hoebel, 0. A., 353, (242). 

 )3-Ethylmethyluracil 



Hoebel, 0. A., 353, (242). 



CYCLOID C7H10O4N2 



Oxy-3,4-dimethylpyrazolone 

 l-carboxyUc acid. 



Amide of the acetijl derivative 

 NH2.CO.N.CO 



N : CMe' 

 Haller et March. Bl., 33, (618). 



CYCLOID C7H12O2N2 



Valylglycineanhydride 



Me2C^.CH<l^^■J,{]>CH2 

 Fischer u. Schenkel, J. A., 354, (12). 

 CYCLOID CsHcONa 



4-Quinazolone 



y-iSlTRO DERIVATIVE 



CH.CH=C.N : CH 

 CH.C(N02):C.C0.NH 

 Bogert & Chambers. Am. Soc, 27, 



(649). 



>CH.CH2.CH20Ac 



1932 



CYCLOID CsHeOzNz 



Phthalylhydrazide 



)3-NiTiio aud /8-AMiNo derivatives 

 XO.NH 



Curtius u. Hoesch. J. pr., 76, (301). 



N02.C6H3< 



CYCLOID CsHeOjNj 



)3-0xyphtlialylhydrazide 



CO.NH 

 Curtius u. Hoesch. J. pr., 76, (301). 



CYCLOID C8H8O2N2 



Ricinine. 

 Maquenne et Philippe. Constitution. 

 BL, 33, (103). 



CYCLOID C8H8O4N2 



Dimethylpyrazine o-dicarboxylic 

 acid 



j.^C(C03H).C(C0,H)=,^^ 



Also its dimethylester, diamide d.nA 

 iviide. 



Gabriel u. Sonn, A. B., 40, (4850). 

 CYCLOID CbHioOsNj 



2, 5-Diketopiperazine-3, 6-diacetic 

 acid 



and the dimethrjl ester. 

 Fischer u. Koenigs, E. B., 40,(2048). 



CYCLOID CsHuONz 



5-Amyl-3-pyraz clone 



and its dibromide. 

 Moureu et Lazennec. Bl., 35, (843). 



5-AMyL-3-I'YRAZOLONIMINE 



C5H11C : CH^Q . j^TH 

 NH.NH 

 Moureu et Lazennec. Bl., 1, (1071). 



CYCLOIDS CsHuOiNz 



Valylalanineanhydride. 

 Fischer u. Schenkel, J. A., 354, (12). 



