Description  Claims  Drawing  Cited references 

US5914289A   [0004] 
KR200312308   [0005] 
US4935474A   [0009] 
US6828394B   [0009] 
US6841631B   [0009] 
US6894128B   [0009] 

J. AM. CHEM. SOC.   [0094]