(4R)-hydroxysphinganine + dodecanoate => N-dodecanoyl-(4R)-hydroxysphinganine + H2O
(4r)-hydroxysphinganine + dodecanoate => n-dodecanoyl-(4r)-hydroxysphinganine + h2o
(4R)-hydroxysphinganine + dodecanoate => N-dodecanoyl-(4R)-hydroxysphinganine + H2O
(4r)-hydroxysphinganine + dodecanoate => n-dodecanoyl-(4r)-hydroxysphinganine + h2o