N5H n5h (2~{E},5~{R},10~{E},12~{E},15~{S},19~{R})-20-[[(2~{R},3~{R})-3-aminocarbonyloxy-2-methyl-butanoyl]amino]-3,5,15-trimethyl-7-methylidene-19-oxidanyl-17-oxidanylidene-icosa-2,10,12-trienoic acid N5H