4p ms calcd for c 23 h 22 cl 2 n 2 oh m z 397 observed m z 397 m 1 4q ms calcd for c 23 h 30 n 2 oh m z 335 observed m z 335 m 1 4r c 10 h 21 n ms calcd for c 26 h 38 n 2 oh m z 379 observed m z 379 m 1 4s ms calcd for c 24 h 24 n 2 o 2 oh m z 373 observed m z 373 m 1 4t ms calcd for c 21 h 22 n 2 ooh m z 319 observed m z 319 m 1 4u ms calcd for c 24 h 23 f 3 n 2 oh m z 397 observed m z 397 m 1 4v ms calcd for c 24 h 25 cln 2 oh m z 377 observed m z 377 m 1 4w ms calcd for c 24 h 26 n 2 ooh m z 359 observed m z 359 m 1 4x ms calcd for c 27 h 26 n 2 oh m z 379 observed m z 379 m 1 4y ms calcd for c 24 h 26 n 2 ooh m z 359 observed m z 359 m 1 4z ms calcd for c 30 h 30 n 2 oh m z 419 observed m z 419 m 1 4aa ms calcd for c 24 h 23 f 3 n 2 oh m z 397 observed m z 397 m 1 4ab ms calcd for c 29 h 28 n 2 oh m z 405 observed m z 405 m 1 4ac ms calcd for c 22 h 23 n 3 oh m z 330 observed m.