5-[(R)-2-Ethyl-5-((R)-2-ethyl-1,4-dioxa-spiro[4.5]dec-2-yl)-pentane-1-sulfonyl]-1-phenyl-1H-tetrazole

(R)-2-Ethyl-5-((R)-2-ethyl-1,4-dioxa-spiro[4.5]dec-2-yl)-pentan-1-ol

tert-Butyl-[(E)-(R)-2-ethyl-5-((R)-2-ethyl-1,4-dioxa-spiro[4.5]dec-2-yl)-pent-4-enyloxy]-diphenyl-silane