| Arzneim.forsch: |
m.p. 182-184°C, [α]D20 +21.1°(c=1 CHCl3) Anal.(C21H30O4) C,H,O
IR(KBr)2920,1760,1448,1365,1086,978cm-1.
NMR(CDCL3)δ0.77,0.87,2.07,3.13,3.85
MSm/e(%)346(1.2M),304(12),286(3.8)275(2.1)271(1.8)232(6.8)231(3.8)217(10), 213(6.1),199(5.3),41(100) |