1930 



CYCLOID CuHi.ON. 



Antipyrine 



^^^<C0 . CH 



and its Nitroso derivativk. 



XO . C.NO 

 Knorr, L. Liebigs Ann. Chem., Leip- 

 zicr, 328, 1903, (62-87). 



73 1930 



CYCLOID CiH.ON. 



/>-Oxyphenyl-ethyl-hydantoin 



EinrL ESTER. 



Frerichs, G. und Breustedt, (r. 

 J. prakt. Chem., Leipzig, (N.F.), 66, 

 1902, (231-261) 



CYCLOIDS C.iHiiOjNv 



/3-Phenyl-7-ethyl-hydantoin 



NPh.CH, 



ift-Xylyl-hydantoin 



CH,.C() 



0-, m- and p-Tolyl-methyl-hydantoin 

 N(C,H,).CH, 



^^*^NiIe CO 



- Frericlis, G. und Breustedt, G. 



J. prakt. Clieui., Leipzig, (N.F.), 66, 



1902, (i'31-2G]). 



Skatole-amino-acetic acid 



(Tryptophane) 



Cen4<gH^>C . CIKNHj) . CO^H 



Hopkins, F. Gowland and Cole, 

 Sydney W. . . . The constitution of 

 tryptophane, and the action of hacteria 

 upon it. J. Physiol., Cambridge, 29, 



1903, (151 IGOj. 



1 -Indole carbamic acid 



Ivnni, ESTER. 



Piccinini, A. e Salmoni, L. Gazz. 

 chim. ital., Palermo, 32, parte I, 1902, 

 (24f)-2r)3). 



-Phenyl- 1, i -dimethyl- 

 done 



-pyiazoli- 



PhX< 



CO.C.Mc 



■XII.CG 



Perkin, W. II. London, J. Cliei 

 Sw., 83, 19U3, (li'17 1203). 



CYCLOID CnH,204N2 



4-Phenylpyrazolidine •"', '-dicar- 

 boxylic acid 

 ,CH(C02H) . NH 

 TH(C02H) . NH 

 and the ethyi. e.ster. 



PhCH<, 



Buchner, E. und Perkel, L. Berlir 

 ]]er. D. chem. Ges.. 36, 1903, (3774- 

 3782). 



CYCLOID CisHbONz 



Oxyphenazine 



ClILORO-OXY-AMlSO-rHEKAZINE 



C'sHsCK^, >C,H2(OH)NH2 



Ullmann, F. und Mauthner, F. Ber- 

 lin, Ber. D. chem. Ges., 36, 1903,(4026- 

 4034). 



CYCLOID C:,H O.N, 



Phenyl-allylhydantoin 



co<: 



NTh 



CIL 



^NfCsHj) . CO 

 Frerichs, G. und Breustedt, (t 

 .1. prakt. Chem., Leipzig, (N.F.), 66 

 1902, (231-261). 



CYCLOID C-Hi.O N, 



/ Oxyphenyl-allyl hydantoin 



L III VI. ETIIEU 



,CH2.C0 

 TO . XC3TI5 

 Frerichs, G. und Breustedt < . 

 Chem., Leipzig, (^X. 1" \ 66. 



CeH,(OEt).N<, 



1902, (231 201). 



