133635-68-4 (2S-TRANS) 133697-48-0 2',3'-Dideoxy-5-O-(4-methylbenzoyl)-5-methoxymethylcytidine 2',3'-Dideoxycytidine deriv. AIDS-002866 AIDS002866 Cytidine, 2',3'-dideoxy-5-(methoxymethyl)-, 5'-(4-methylbenzoate)