(R)-N-(3-((2-((2,3-Dihydro-6-hydroxy-2-oxo-1H-naphtho(2,1-b)(1,4)thiazin-5-yl)thio)ethyl)amino)-3-oxopropyl)-2,4-dihydroxy-3,3-dimethylbutanamide 161162-21-6 Butanamide, N-(3-((2-((2,3-dihydro-6-hydroxy-2-oxo-1H-naphtho(2,1-b)(1,4)thiazin-5-yl)thio)ethyl)amino)-3-oxopropyl)-2,4-dihydroxy-3,3-dimethyl-, (R)- FR 901537 FR-901537 N-(2-(2-(2,3-Dihydro-6-hydroxy-2-oxo-1H-naphtho(2,1-b)(1,4)thiazin-5-ylthio)ethylaminocarbonyl)ethyl)-2,4-dihydroxy-3,3-dimethylbutyramide