1930 



1930 



CYCLOID C;H.0,N2 



l-Methyl-.".-acetylpyrazole 



■5-carboxylic acid 



^ CAc . CUe 



' ^NH .C.CO2H 



ami its METHYL and eitivl esters. 



Klages, A. und Ronneburg, A. Ber- 

 lin, Ber. D. chem. Ges., 36, 1903, (1128- 

 1132). 



CYCLOID C7HUON2 



6, 2, 4, S-Oxymethylethylpyrimidine 



Amino derivative 



Byk, A. Berlin. Ber. D. chem. Ges 

 36, 1903, (1915-1926). 



CYCLOIDS CtH.oO.Nj 



6, 2, 4, 5-Dioxymethyl-ethyl- 

 pyrimidine 



Byk, Alfred. Berlin, Ber. D. chem. 

 Ges., 36. 1903,(1915-1926). 



Trimethyluracil 



(.Q^NMe.CO ^p„ 



^^^^XMe.CMe^^^ 



Belirend, R. und Fricke, L. Liebigs 



Ann. Chem., Leipzig, 327, 1903, (253- 



268). ' ^ 



CYCLOID C;HhO,N2 



G-Acetyldimethylallanturic acid 

 X-Mc.Co 

 *^'^<NMe.C(0n).CU.CH3 

 Behrend, R und Fricke, L. Liebigs 

 Ann. Ghem., Leipzig, 327, 1903, (253- 

 268). 



CYCLOID C,H,0:N; 



G S-Dioxyphthalazine 



0(OH):C(OH).C.Cn:N 



CH :GH C.CH:N 



Gabriel, 8. Berlin, Ber. IX chem 

 '■'s.. 36. 1903, (3373-3378). 



(D-:j482^ 



CYCLOID C H 0,N, 



3, <5-Diinethylpyridaziiie 

 4.5dicarboxylic acid 



N 



^^>CMe 



*^'^^^^<C(COjH) : C(COjH)' 

 and its ETHYL ester and ester acid 



and their salts. 

 Paal. C. und Ubber, J. Berlin Ber 

 D. chem. Ges., 36, 1903, (497-512). 



Ethyl ester, C,2H,604Nj 

 Paal, G. und Koch, C. Berlin, Ber 

 D. chem. Gr.-,., 36. 1903, '2538-25.39i. 



CYCLOID CHi.OaN- 



1 > ^-^imethyl-3-acetyl pyi-azole 

 5-carboxylic acid 



CAc . N(CH3) 



CMe.C(CO^H)^-^^ 



and its ethyl ester. 



Klages, A. und Ronneburg, A. Berlin 



Ber. D. chem. Ges., 36, 1903, (1128- 



CYCLOID CH.O.N, 

 Phenylhydantoin 



' ^CO . NH 



m- and p- Chloro- and 



P-Bromo-phenvl-uvdantoin'. 



Frerichs, G. und Breustedt G 



J- Prakt. Chem., Leipzig, X.F ''66 



1902, (231-261). ^ ^ ■ . 00, 



CYCLOID CH.O.Nj 



OxyphenyUiydanloin 



MKMIVI. ETllKli 



^CIL . G( ) 

 "CO . Nil 

 Frericlis, G. und Breustedt, a 

 J. prakt. Chem., Leipzig, GV F ' 66 

 1902,(231-261). ^ ' • 



(■6H4(OMe)X< 



Bromo-oxypuenyl-iiydaxtoim 

 Ethyl ether 



^ XO.NH 

 Frerichs, G. und Breustedt, <;. 

 J. prakl. Chem., Leipzig. ^X F 1 66 

 1902,(231-261). y ^ ••«"». 



3 D 2 



