(2S)-flavanone + NADPH + H(+) => (2S)-flavan-4-ol + NADP(+)
(2s)-flavanone + nadph + h(+) => (2s)-flavan-4-ol + nadp(+)
(2S)-flavanone + NADPH + H(+) => (2S)-flavan-4-ol + NADP(+)
(2s)-flavanone + nadph + h(+) => (2s)-flavan-4-ol + nadp(+)