phosphonoacetaldehyde + methylamine + AH2 => 2-(methylaminoethyl)phosphonate + A + H2O
phosphonoacetaldehyde + methylamine + ah2 => 2-(methylaminoethyl)phosphonate + a + h2o
phosphonoacetaldehyde + methylamine + AH2 => 2-(methylaminoethyl)phosphonate + A + H2O
phosphonoacetaldehyde + methylamine + ah2 => 2-(methylaminoethyl)phosphonate + a + h2o