2,2-Dimethyl-propionic acid 4-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-8-hydroxy-5,6,7,8-tetrahydro-quinolin-2-ylmethyl ester

{4-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-5,6,7,8-tetrahydro-quinolin-2-yl}-methanol

(2S,3S)-2-[(7R,8S)-4-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(2,2-dimethyl-propionyloxymethyl)-8-hydroxy-7,8-dihydro-quinolin-7-ylamino]-3-methyl-pentanoic acid tert-butyl ester

(1aS,7bR)-4-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1a,7b-dihydro-1-oxa-7-aza-cyclopropa[a]naphthalene-6-carboxylic acid tert-butyl ester

(1aS,7bR)-4-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1a,7b-dihydro-1-oxa-7-aza-cyclopropa[a]naphthalene-6-carboxylic acid methyl ester