Found: C, 66.2; H, 6.5; N, 7-8. Calc. for C,oH,,-N,O,: C, 66.1; H, 6-4; N, 7.7%), T (CF,*C02H) -0.2 (2H, s) and 0.13 (lH, s) (meso-H), 5-6-59 (8H, m) and 6.6-7-0 (8H, m) (CH,*CH,*CO), 6.0 (3H, s) and 6.2 (9H, s) a-Hydroxy-2,4,6,8-tetrakis-(2-methoxycarbonyZethyl)-23 K.