Cycloids containing nitrogen, 785 



1932 



CYCLOIDS CuHi;0:N2 



Leucyl-jS-aminobutyric anhydride. 



Kay. A., 362, i3-18j. 



trans- Valineanhydride 



cvH;.ciJ<^/[^J^>cn.C3ii7 



Fischer u. Scheibler. A., 363, (13(3). 

 CYCLOIDS CnHi.ONz 



Antipyrine. 



Phospliatc and arsenate. 



Aubouy. r.L, 3, (3SS). 



Azzarello. OoDSO. Su alcnni clietoni 

 fiira^olinici. 



Garelli, F. e Barbieri. 50541. Alcuiii 

 coniposti di addizione dell'l-fenile- 

 2,3-dimetilpirazolone (antipirina). 



4-Oxy-2-isopropyl- quinaz oline 



C(OHi : X 



G-BUOMO DERIVATIVE. 



Also the homologous 'mobutjjl and 

 isoaviijl compounds. 



Bogert & Hand. Am. Soc, 28, (94j. 



4-Keto :^-methyl-3-ethyldiliydro- 

 quinaz oline 



CJ1,<^'^':-^^ 

 CO.NEt 



fj-XlTRO DERIVATIVE. 



Bogert & Cook. Xm. Soc.,28, (14-19). 

 CYCLOID CuHijOzNz 



l-Phenyl-4-ethyl-3,5-pyrazolidone 



.CO.CHEt 



XPh< 



\XH.CO 

 Michaelis u. Scbenk. B., 41, (38C5). 



CYCLOID CuHiaO.Nz 



Prolylleucine anhydride 

 CH2. CH2\ 

 I \N.CO.CH.CH2.CHile2 



CHj. CH. CO XH 



FiscHer u. Reif. A., 363, (118). 



CYCLOID CUH20O2N2 



1-Leucyl-d-valine anhydride. 

 , Fischer u. Scheibler. A., 363, (13G). 

 (D~12575j 



CYCLOID C, H, O5N 



Phenacyldialuric acid. 

 Kiihling. B., 41, (1058). 



CYCLOID CizHi.ON, 



/CH : CMe 

 AcC< I 



XX NPh 



Castellana. 55106. Sulla trasforma- 

 zione dei pirroli in derivati del pirazolo. 



CYCLOID CivHuON, 



1 -Phenyl--, 4, 4-trimethyl-3, 5- 

 pyrazolidone 



(DiinctJnjliiialoiiijIantipijvine). 

 ,C0 . CMe2 

 \XMe. CO 

 Michaelis u. Schenk. B., 41, fSSGS). 



NPh<' 



CYCLOID CzHieO.N, 



Camphylpyrazole carboxylic acid 



C3H,,<^— C-CU.H 

 C.NH.X 

 and CAMPiiYi.PTRAZOLE. Also p-hromo- 

 pltenijlaampliylpyrazolc larhoxylie acid. 



Tingle & Robinson. Am., 36, '223). 

 CYCLOID C,:Hi60:N, 



l-Phenyl-2, 4-dimethyl-4-ethyl-3, 5- 

 pyrazolidone 



/CO . CMeEt 

 XPli< i 



^NMe.CO 



Michaelis u. Schenk. B., 41, (38G5). 

 CYCLOID CuHicOjNz 



7-Oxy-0-naphthyl-3-methylpyrazo- 

 lone 



/N = CMe 

 C,oH6(OH).X<; I 



^CO. CH2 



Franzen u. Deibel. J.pr., 78, f 143). 

 CYCLOID ChHibOsN, 



4.5-Camphyl-l-methyl-2-keto- 

 pyrimidine G-carboxylic acid 



C8H,4<^'' • *^'^^2^^>X.Me 

 C : X.CO 



Tingle & Robinson. C2G30. 



3 E 2 



