Cycloids containing nitrogen. ^S4 1 



1932 



CO,H.C«H,<- 



CYCLOIDS CiHinOjNa 



,3-Dimethyl-4-ketodiliydroquinazo- 

 line G-carboxylic acid 



,X : CMe 



'CO.NMe 



and the isomeric 7-carboxylic acid- 



Bogert, Wiggin & Sinclair. Am. Soc, 

 29, {81'). 



2-0xy-3-phenyl-dihydropyrazine 

 carboxylic acid 



Manuelli e Maselli, C. G., 35, (572). 

 CYCLOIDS CnHi20N2 



4-Phenyl-5 (or 3)-acetylpyrazoline 



CH<^:^fj5>CHAc 

 AzzareUo. 43SS4. 

 2- Methyl- 3 - ethylquinaz clone 



.'i-XlTRU UERIVATIVE 



CH.CH = C.N = CMe 



CH.C(N02) : C.CO . NEt 



Also the correspoading compounds with 



n-propyl, isopropyl, isobutyl, inoamijl 

 and allyl in place of ethyl. 



Bogert & Sell. Am. .Soc, 27, (1305). 

 Antipyrine 



Compound (CiiHj.^OXjjjHgOaq 



Astruc et Ville. Combinaison de 

 rosvde mercvirique avec I'antipvrine. 

 Bl.,'33, (842;. 



ASTIPTfRTLSEMTCARBAZIDE 



.CO . NPh 



*CMe. Nile 



And its acetyl, ethylidene, henzylidene, 



phenylcarbamyl and carhethoxy 



derivatives. 



Lumiere, A. et L. et Barbier. BL, 

 33, (503). 



CYCLOIDS CiHizOzNz 



Phenylalanylglycine anhydride 



PhCH2.CH<^?^-^,J]>CH2 

 nscher u. Blank, P. A., 354, (1). 



NH2.NH.C0.NH.C<'- 



Glycyl-1-phenylalanine anhydride 



CeH5.cii2.cH<g5i;J.JJ>cir3 



Fischer u. Schoeller, W. A., 357, (1). 



l-Phenyl-3-oxy- 1, i-dimethyl-5- 

 pyrazolone 



N :C(OH) 



Micbaelis u. Schenk, K. I!., 40, 



(.35()Si. 



CYCLOID CnHuONj 



1-Phenyl- 4 - ethylpyr az olidone 



Acetyl iierivative 

 ^XAc.CH^ 

 CO .CHEt 

 Blaise et Luttringer. BL, 33, (760). 



C6H5.N<' 



CYCLOID CizHi.ON, 



M ethylpropionylquinoxaline 



P TT ^X : C.COEt 



L5tl4<, 



N : C.CH3 

 Sachs u. Herold, V. B., 40. (2714). 



CYCLOIDS Ci2Hi202N2 



a and ;8-Benzylmethyluracil. 

 Hoebel, 0. A., 353, (i'42j. 



CYCLOID C12H22O2N2 



Diisobutyldiketopiperazine 



C4Hg.CH<^^-gg>CH.C,If9 



Bouveault etLocquin. BL, 31, (1180). 

 Ehrlich, F. B., 40, (2538). 



CYCLOID C13H10ON2 



Oxyphenylindazole 



N.NPh 

 S-Chloro and 5,7-mchloro-derivatives. 

 Freundler, P. BL, 1, (228). 



et Laborderie. BL, 1, 



(234). 



CYCLOID C,3Hi40,N2 



3,5-Dimethyl-4-benzyl-o-carboxylic 

 acid pyrazole 



N : C-Me^^,_^jj^ ^,^pj^ ^,(3^y 

 NH. CMe 

 Buelow u. Deseniss, M. B., 40, (187). 



