2-Methyl-2-propanyl (4S)-5-hydroxy-4-[(N-{[(1S,2S,6S,7R,10R,13S)-9-oxo-11-(4-{[(1R,4R,10S)-4,12,12-trimethyl-5-oxatricyclo[8.2.0.04,6]dodec-9-ylidene]methyl}benzyl)-3,5,8,12-tetraoxa-11-azatetracycl
o[5.5.2.02,6.010,13]tetradec-13-yl]carbonyl}-β-alanyl)amino]pentanoate